-lrb- cnn -rrb- -- changing winter conditions are causing scotland 's wild soay sheep to get smaller , according to a study that suggests climate change can trump natural selection . ca n't see me now : climate change could be shrinking soay sheep in scotland . the authors of the study published in `` science '' believe that it highlights how wide-ranging the effects of global climate change can be , adding further complexity to the changes we might expect to see in animal populations in future . `` it 's only in the last few years that we 've realized that evolution can influence species ' physical traits as quickly as ecological changes can . this study addresses one of the major goals of population biology , namely to untangle the ways in which evolutionary and environmental changes influence a species ' traits , '' said andrew sugden , deputy and international managing editor at science . the researchers analyzed body-weight measurements and life-history data for the female members of a population of soay sheep . the sheep live on the island of hirta in the st. kilda archipelago of scotland and have been studied closely since 1985 . they selected body size because it is a heritable trait , and because the sheep have , on average , been decreasing in size for the last 25 years . according to the findings lambs are not growing as quickly as they once did as winters have become shorter so do not need to put on as much as weight in the first months of life to survive . the results suggest that the decrease is primarily an ecological response to environmental variation over the last 25 years . evolutionary change , the report says , has contributed relatively little . `` sheep are getting smaller . well , at least the wild soay sheep living on a remote scottish island are . but according to classic evolutionary theory , they should have been getting bigger , because larger sheep tend to be more likely to survive and reproduce than smaller ones , and offspring tend to resemble their parents , '' said study author tim coulson of imperial college london . -lrb- cnn -rrb- -- singer celine dion is 14 weeks pregnant with twins after years of trying to expand her family , her representative said sunday . dion , 42 , and her husband-manager rene angelil , 68 , will find out next month the gender of their twins , representative kim jakwerth said . the pregnancy was the result of her sixth in-vitro fertilization attempt , jakwerth said . dion turned to acupuncture therapy to improve her chances of getting pregnant , she said . angelil is the father , she said . a canal bank beneath a busy flyover might not rank as paradise . but for this puzzled puffin -- apparently suffering a navigation malfunction and pining for the atlantic -- it was welcome sanctuary . the confused bird was seen swimming in the grand union canal earlier this month after apparently flying into london along the thames . this puzzled puffin was spotted flying into london along the thames , close to the a4 flyover at brentford . the distinctive bird with an orange beak was spotted by an eagle-eyed canal boat resident . the puffin was given some fish and wrapped in a blanket , before being handed to a specialist centre in dorset to recuperate . `` our findings have solved a paradox that has tormented biologists for years -- why predictions did not match observation . biologists have realized that ecological and evolutionary processes are intricately intertwined , and they now have a way of dissecting out the contribution of each . unfortunately it is too early to tell whether a warming world will lead to pocket-sized sheep , '' said coulson . more commonly seen in iceland and the north atlantic , it was spotted near the a4 flyover at brentford . its holiday came to an end when a canal-boat resident caught sight of its distinctive beak and alerted the appropriate authorities . steve knight , of the swan sanctuary in nearby shepperton , caught the bird , which has now been handed over to a specialist centre in dorset , where he is being nursed back to full health . ` i 've never rescued a puffin before but these birds dive very quickly so you 've got to be quick about it , ' he said . ` ` all he knew about it was a big net coming over him and that was it . he looked pretty exhausted and hungry , and he seemed to have lost weight . the couple already has a 9-year-old son , rene-charles . the five-time grammy winner has sold 200 million albums around the world , according to her website . a new harris poll released in may named dion , a canadian , as america 's favorite singer . -lrb- cnn -rrb- -- a brain-eating amoeba that lurks in fresh water has prompted warnings from kansas officials after it killed a 9-year-old girl . dion , who completed a world tour last year , will return to las vegas , nevada , next march to begin a three-year residency at the colosseum at caesars palace . cnn 's doug hyde contributed to this report . the puffin was spotted swimming in the grand union canal -lrb- left -rrb- while the species normally reside in iceland . ' i gather they normally eat sand eels but there are n't too many of them in the grand union , so we gave him some whitebait . ' sanctuary founder dot beeson added she believes the puffin got lost or was blown off course by recent winds . hally yust was an avid water skier and spent the past few weeks swimming in several bodies of fresh water . she died last week from naegleria fowleri , a brain-eating parasite that lives in warm , standing water . at hally 's funeral monday , her family wore matching t-shirts with the logo of her water-skiing club , cnn affiliate wdaf said . relatives honored the young athlete by announcing the hally yust women 's basketball scholarship at kansas state university . `` our precious daughter , hally , loved life and part of her great joy was spending time playing in the water , '' her family said in a statement . `` her life was taken by a rare amoeba organism that grows in many different fresh water settings . we want you to know this tragic event is very , very rare , and this is not something to become fearful about . '' ` it just causes destruction ' while naegleria fowleri infections are rare , they can have devastating effects . `` the amoeba ... finds itself way back in our noses and then can work its way into our central nervous system , around our brains , '' said dr. william schaffner of vanderbilt university medical center . `` and once it 's there , it just causes destruction . '' symptoms usually show up five days after infection , the kansas department of health and environment said . in addition to a severe headache , fever , nausea and vomiting , naegleria fowleri infections often cause death . more frequent in summer . the cases are often reported in the summer , when more swimmers take a dip in fresh water . last summer , 12-year-old zachary reyna of florida became infected after he went knee-boarding in fresh water near his home . he later died . also last summer , kali hardig of arkansas went for a swim and was infected by the parasite . despite incredible odds against her , kali survived . over the past 50 years , about 130 naegleria fowleri infections have been reported . of those , only three people -- including kali -- have survived . while humans can get infected swimming in fresh water , people can not get infected from drinking water contaminated with the amoeba , the centers for disease control and prevention said . how to protect yourself . the extreme rarity and randomness of infections can make it difficult to predict where they might occur . `` it is unknown why certain persons become infected with -lrb- naegleria fowleri -rrb- while millions of others exposed to warm recreational fresh waters do not , including those who were swimming with people who became infected , '' the cdc said . the kansas health department advises swimmers to use nose plugs when swimming in fresh water . it also suggests not stirring up the sediment at the bottom of shallow freshwater areas and keeping your head above the water in hot springs and other untreated thermal waters . but naegleria fowleri is far from the biggest danger in summertime water activities . while 34 people were infected with the amoeba in the u.s. between 2004 and 2013 , there were more than 34,000 drowning deaths in the united states between 2001 and 2010 , the cdc said .
9-year-old hally yust died after contracting naegleria fowleri . the amoeba can enter the nose , central nervous system and brain . only three out of 130 infected people have survived over the past 50 years . kansas health officials suggest wearing nose plugs in fresh water .
on as much as weight in the first months of life to survive . the results suggest that the decrease is primarily an ecological response to environmental variation over the last 25 years . evolutionary change , the report says , has contributed relatively little . `` sheep are getting smaller . well , at least the wild soay sheep living on a remote scottish island are . but according to classic evolutionary theory , they should have been getting bigger , because larger sheep tend to be more likely to survive and reproduce than smaller ones , and offspring tend to resemble their parents , '' said study author tim coulson of imperial college london . -lrb- cnn -rrb- -- singer celine dion is 14 weeks pregnant with twins after years of trying to expand her family , her representative said sunday . dion , 42 , and her husband-manager rene angelil , 68 , will find out next month the gender of their twins , representative kim jakwerth said . the pregnancy was the result of her sixth in-vitro fertilization attempt , jakwerth said . dion turned to acupuncture therapy to improve her chances of getting pregnant , she said . angelil is the father , she said . a canal bank beneath a busy flyover might not rank as paradise . but for this puzzled puffin -- apparently suffering a navigation malfunction and pining for the atlantic -- it was welcome sanctuary . the confused bird was seen swimming in the grand union was a big net coming over him and that was it . he looked pretty exhausted and hungry , and he seemed to have lost weight . the couple already has a 9-year-old son , rene-charles . the five-time grammy winner has sold 200 million albums around the world , according to her website . a new harris poll released in may named dion , a canadian , as america 's favorite singer . -lrb- cnn -rrb- -- a brain-eating amoeba that lurks in fresh water has prompted warnings from kansas officials after it killed a 9-year-old girl . dion , who completed a world tour last year , will return to las vegas , nevada , next march to begin a three-year residency at the colosseum at caesars palace . cnn 's doug hyde contributed to this report . the puffin was spotted swimming in the grand union canal -lrb- left -rrb- while the species normally reside in iceland . ' i gather they normally eat sand eels but there are n't too many of them in the grand union , so we gave him some whitebait . ' sanctuary founder dot beeson added she believes the puffin got lost or was blown off course by recent winds . hally yust was an avid water skier and spent the past few weeks swimming in several bodies of fresh water . she died last week from naegleria fowleri , a brain-eating parasite that lives in warm , standing water . at hally 's funeral monday , her family wore matching t-shirts with the logo of her water-skiing club , cnn affiliate wdaf said . relatives honored the young athlete by announcing the hally yust women 's basketball scholarship at kansas state university . `` our precious daughter , hally , loved life and part of her great joy was spending time playing in the water , '' her family said in a statement . `` her life was taken by a rare amoeba organism that grows in many different fresh water settings . we want you to know this tragic event is very , very rare , and this is not something to become fearful about . '' ` it just causes destruction ' while naegleria fowleri infections are rare , they can have devastating effects . `` the amoeba ... finds itself way back in our noses and then can work its way into our central nervous system , around our brains , '' said dr. william schaffner of vanderbilt university medical center . `` and once it 's there , it just causes destruction . '' symptoms usually show up five days after infection , the kansas department of health and environment said . in addition to a severe headache , fever , nausea and vomiting , naegleria fowleri infections often cause death . more frequent in summer . the cases are often reported in the summer , when more swimmers take a dip in fresh water . last summer , 12-year-old zachary reyna of florida became infected after he 2001 and 2010 , the cdc said .
, namely to untangle the ways in which evolutionary and environmental changes influence a species ' traits , '' said andrew sugden , deputy and international managing editor at science . the researchers analyzed body-weight measurements and life-history data for the female members of a population of soay sheep . the sheep live on the island of hirta in the st. kilda archipelago of scotland and have been studied closely since 1985 . they selected body size because it is a heritable trait , and because the sheep have , on average , been decreasing in size for the last 25 years . according to the findings lambs are not growing as quickly as they once did as winters have become shorter so do not need to put on as much as weight in the first months of life to survive . the results suggest that the decrease is primarily an ecological response to environmental variation over the last 25 years . evolutionary change , the report says , has contributed relatively little . `` sheep are getting smaller . well , at least the wild soay sheep living on a remote scottish island are . but according to classic evolutionary theory , they should have been getting bigger , because larger sheep tend to be more likely to survive and reproduce than smaller ones , and offspring tend to resemble their parents , '' said study author tim coulson of imperial college london . -lrb- cnn -rrb- -- singer celine dion is 14 weeks pregnant was a big net coming over him and that was it . he looked pretty exhausted and hungry , and he seemed to have lost weight . the couple already has a 9-year-old son , rene-charles . the five-time grammy winner has sold 200 million albums around the world , according to her website . a new harris poll released in may named dion , a canadian , as america 's favorite singer . -lrb- cnn -rrb- -- a brain-eating amoeba that lurks in fresh water has prompted warnings from kansas officials after it killed a 9-year-old girl . dion , who completed a world tour last year , will return to las vegas , nevada , next march to begin a three-year residency at the colosseum at caesars palace . cnn 's doug hyde contributed to this report . the puffin was spotted swimming in the grand union canal -lrb- left -rrb- while the species normally reside in iceland . ' i gather they normally eat sand eels but there are n't too many of them in the grand union , so we gave him some whitebait . ' sanctuary founder dot beeson added she believes the puffin got lost or was blown off course by recent winds . hally yust was an avid water skier and spent the past few weeks swimming in several bodies of fresh water . she died last week from naegleria fowleri , a brain-eating parasite that lives in warm , standing water . at hally 's funeral monday , her family wore matching t-shirts with the logo of her water-skiing club , cnn affiliate wdaf said . relatives honored the young athlete by announcing the hally yust women 's basketball scholarship at kansas state university . `` our precious daughter , hally , loved life and part of her great joy was spending time playing in the water , '' her family said in a statement . `` her life was taken by a rare amoeba organism that grows in many different fresh water settings . we want you to know this tragic event is very , very rare , and this is not something to become fearful about . '' ` it just causes destruction ' while naegleria fowleri infections are rare , they can have devastating effects . `` the amoeba ... finds itself way back in our noses and then can work its way into our central nervous system , around our brains , '' said dr. william schaffner of vanderbilt university medical center . `` and once it 's there , it just causes destruction . '' symptoms usually show up five days after infection , the kansas department of health and environment said . in addition to a severe headache , fever , nausea and vomiting , naegleria fowleri infections often cause death . more frequent in summer . the cases are often reported in the summer , when more swimmers take a dip in fresh water . last summer , 12-year-old zachary reyna of florida became infected after he went knee-boarding in fresh water near his home . he later died . also last summer , kali hardig of arkansas went for a swim and was infected by the parasite . despite incredible odds against her , kali survived . over the past 50 years , about 130 naegleria fowleri infections have been reported . of those , only three people -- including kali -- have survived . while humans can get infected swimming in fresh water , people can not get infected from drinking water contaminated with the amoeba , the centers for disease control and prevention said . how to protect yourself . the extreme rarity and randomness of infections can make it difficult to predict where they might occur . `` it is unknown 2001 and 2010 , the cdc said .
-lrb- cnn -- changing winter conditions are causing scotland 's wild soay sheep get smaller, according that suggests can trump natural selection ca n't see me now : climate change could shrinking soay sheep in scotland. the authors published `` science '' believe it highlights how wide, adding further complexity the changes we might animal populations. `` it 's only in ' realized that evolution influence species ' physical traits as quickly ecological changes. this study addresses one population biology, namely untangle the ways evolutionary and environmental changes a species ' traits '' said andrew sugden deputy and international managing editor science. the researchers analyzed body-weight measurements the female members soay sheep. the sheep live the island hirta in the st. kilda archipelago scotland and have studied closely 1985. they selected body size because a heritable trait, the sheep, on been decreasing according the findings lambs not growing once as winters become shorter so do need put as weight to survive. the results suggest the decrease is primarily an ecological response environmental variation over. evolutionary change, the report contributed relatively. `` sheep are getting smaller. well, at least the wild soay sheep living a remote scottish island are. but according classic evolutionary theory, they should getting bigger, larger sheep tend likely than and offspring resemble '' said study author tim coulson imperial college london -lrb- cnn -rrb- -- singer celine dion is 14 weeks after years trying expand, her representative sunday dion, 42 and her husband-manager rene angelil 68 will find next the gender their twins representative kim jakwerth said. the pregnancy was, jakwerth said. dion turned acupuncture therapy improve her chances, she angelil is the father, she said. a canal bank beneath a busy flyover might rank paradise. but for this puzzled puffin -- apparently suffering a navigation malfunction pining the atlantic -- welcome sanctuary. the confused bird was seen swimming the grand union canal earlier after apparently flying london along the thames. this puzzled puffin was spotted flying into london along the thames, close the a4 flyover at brentford the distinctive bird with was spotted an eagle-eyed canal boat resident. the puffin was given some fish wrapped, before handed a specialist centre dorset to `` our findings have solved a paradox tormented biologists -- why predictions did observation. biologists realized ecological and evolutionary processes, they now dissecting out the contribution. unfortunately it too a warming world pocket-sized sheep, '' said coulson. more commonly seen iceland and the north atlantic, it spotted near the a4 flyover brentford. its holiday came a canal-boat resident caught its distinctive beak alerted the appropriate authorities. steve knight, of the swan sanctuary nearby shepperton caught the bird, which has now handed a specialist centre dorset back full health ` i 've rescued a puffin but these birds dive very quickly so ' quick about, ' he ` ` all he knew a big net coming over that. he looked pretty exhausted hungry, seemed weight the couple already, rene-charles. the five-time grammy winner has sold around, according her website a new harris poll released may named dion, canadian, as america 's favorite singer. -lrb- cnn -- a brain-eating amoeba that fresh water has prompted warnings kansas officials after killed. dion, who completed a world tour las vegas, nevada next march begin caesars palace cnn 's doug hyde contributed. the puffin was spotted swimming the grand union canal -lrb- left -rrb- while the species normally reside iceland. ' i gather normally eat sand eels there n't too the grand union, so we gave him some whitebait. ' sanctuary founder dot beeson added she believes the puffin got lost or blown course recent winds. hally yust was an avid water skier spent swimming several bodies fresh water. she died last naegleria fowleri, lives warm, standing water at hally 's funeral monday, her family wore matching her water-skiing club, cnn affiliate wdaf said relatives honored the young athlete announcing the hally yust women 's basketball scholarship at kansas state university. `` our precious daughter, hally, loved life part her great joy was spending playing, '' her family. `` her life taken a rare amoeba organism grows many different fresh water settings. we want this tragic event very, rare, this to become fearful '' ` it just causes destruction ' while naegleria fowleri infections rare, they have. `` the amoeba... finds itself way our noses then can work, around '' said dr william schaffner of vanderbilt university medical center. `` and once it 's there, just causes destruction. '' symptoms usually show five infection, the kansas department and environment. in addition a severe headache, fever nausea naegleria fowleri infections often death more frequent in summer. the cases often reported the summer, more swimmers take fresh water. last summer, 12-year-old zachary reyna of florida became infected after he went knee-boarding fresh water near. he later died. also last summer, kali hardig of arkansas went for a swim infected. despite incredible odds against, kali survived. over, about 130 naegleria fowleri infections. of those, only three people -- including kali survived. while humans get infected swimming, people not from the centers. how protect. the extreme rarity randomness infections can where. `` it unknown why certain persons become infected -lrb- naegleria fowleri -rrb- while millions exposed warm recreational fresh waters do, including were swimming people became, '' the cdc said. the kansas health department advises swimmers nose plugs fresh water. it also suggests not stirring the sediment at shallow freshwater areas keeping your head in hot springs other untreated thermal waters. but naegleria fowleri far the biggest danger summertime water activities. while 34 people infected in the u.s between 2004, there more than 34,000 drowning deaths the united states the cdc said.
was a big net coming over him and that was it . he looked pretty exhausted and hungry , and he seemed to have lost weight . the couple already has a 9-year-old son , rene-charles . the five-time grammy winner has sold 200 million albums around the world , according to her website . a new harris poll released in may named dion , a canadian , as america 's favorite singer . -lrb- cnn -rrb- -- a brain-eating amoeba that lurks in fresh water has prompted warnings from kansas officials after it killed a 9-year-old girl . dion , who completed a world tour last year , will return to las vegas , nevada , next march to begin a three-year residency at the colosseum at caesars palace . cnn 's doug hyde contributed to this report . the puffin was spotted swimming in the grand union canal -lrb- left -rrb- while the species normally reside in iceland . ' i gather they normally eat sand eels but there are n't too many of them in the grand union , so we gave him some whitebait . ' sanctuary founder dot beeson added she believes the puffin got lost or was blown off course by recent winds . hally yust was an avid water skier and spent the past few weeks swimming in several bodies of fresh water . she died last week from naegleria fowleri , a brain-eating parasite that lives in warm , standing water . at hally 's funeral monday , her family wore matching t-shirts with the logo of her water-skiing club , cnn affiliate wdaf said . relatives honored the young athlete by announcing the hally yust women 's basketball scholarship at kansas state university . `` our precious daughter , hally , loved life and part of her great joy was spending time playing in the water , '' her family said in a statement . `` her life was taken by a rare amoeba organism that grows in many different fresh water settings . we want you to know this tragic event is very , very rare , and this is not something to become fearful about . '' ` it just causes destruction ' while naegleria fowleri infections are rare , they can have devastating effects . `` the amoeba ... finds itself way back in our noses and then can work its way into our central nervous system , around our brains , '' said dr. william schaffner of vanderbilt university medical center . `` and once it 's there , it just causes destruction . '' symptoms usually show up five days after infection , the kansas department of health and environment said . in addition to a severe headache , fever , nausea and vomiting , naegleria fowleri infections often cause death . more frequent in summer . the cases are often reported in the summer , when more swimmers take a dip in fresh water . last summer , 12-year-old zachary reyna of florida became infected after he 2001 and 2010 , the cdc said .
 The text appears to be discussing various topics, including health issues related to water and brain-eating amoebas. It mentions a case where a 9-year-old boy died after swimming in a lake infested with Naegleria fowleri, a rare but deadly parasite that can cause primary amebic meningoencephalitis (PAM). The article also touches on other health-related topics, such as Grammy winner Dion's weight loss and her son's health issues. Additionally, it discusses a poll released by CNN showing that Americans are concerned about their health and the environment.