, transferring their weight to the pelvic fins while moving the pectorals forward. With either gait, they can cover only short stretches.

In open water, frogfishes can swim with strokes of the caudal fin. They also use jet propulsion, often used by younger frogfish. It is achieved by rhythmically gulping water and forcing it out through their gill openings, also called opercular openings, which lie behind their pectoral fins.

The sargassum frogfish has adapted fins which can grab strands of sargassum, enabling it to "climb" through the seaweed.

Hunting

Frogfishes eat crustaceans, other fish, and even each other. When potential prey is first spotted, the frogfish follows it with its eyes. Then, when it approaches within roughly seven body-lengths, the frogfish begins to move its illicium in such a way that the esca mimics the motions of the animal it resembles. As the prey approaches, the frogfish slowly moves to prepare for its attack; sometimes this involves approaching the prey or "stalking", while sometimes it is simply adjusting its mouth angle. The catch itself is made by the sudden opening of the jaws, which enlarges the volume of the mouth cavity up to 12-fold, pulling the prey into the mouth along with water. The attack can be as fast as 6 milliseconds.  The water flows out through the gills, while the prey is swallowed and the esophagus closed with a special muscle to keep the victim from escaping. In addition to expanding their mouths, frogfish can also expand their stomachs to swallow animals up to twice their size.

Slow-motion filming has shown that the frogfish sucks in its prey in just six milliseconds, so fast that other animals cannot see it happen.

Reproduction

The reproductive behavior of the normally solitary frogfish is still not fully researched. Few observations in aquaria and even fewer from the wild have been made. Most species are free-spawning, with females laying the eggs in the water and males coming in behind to fertilize them. From eight hours to several days before the egg-laying, the abdomen of the female starts to swell as up to 180,000 eggs absorb water.  The male begins to approach the female around two days before the spawning. Whether the spawn is predetermined by some external factor, such as the phase of the moon, or if the male is attracted to
, transferring their weight to the pelvic fins while moving the pectoral ahead. With either gait, they can cover only unretentive stretches. 

 In open body of water, frogfishes can swim with solidus of the caudal fin. They also practice jet propulsion, often used by younger frogfish. It is achieve by rhythmically gulping water and push it out through their gill openings, also call opercular openings, which lie behind their pectoral fins. 

 The gulfweed frogfish has adapted fins which can catch strands of gulfweed, enabling it to " rise " through the seaweed. 

 Hunting 

 Frogfishes eat crustaceans, early fish, and even each other. When potential prey is first spotted, the frogfish follows it with its center. Then, when it approach within roughly seven body - lengths, the frogfish begins to move its illicium in such a way that the esca mimic the motions of the animal it resemble. As the prey approaches, the frogfish slowly act to organize for its attack; sometimes this involves approaching the prey or " stalk ", while sometimes it is simply adjusting its mouth angle. The apprehension itself is made by the sudden opening of the jaws, which enlarges the volume of the mouth cavity up to 12 - fold, pulling the prey into the mouth along with water. The attack can be as firm as 6 milliseconds.   The body of water flows out through the gills, while the prey is swallowed and the esophagus closed with a special muscleman to keep the victim from escaping. In addition to expand their mouths, frogfish can also expand their stomachs to accept animals up to twice their size. 

 boring - motion filming has shown that the frogfish suck in its prey in just six millisecond, so fast that other animals cannot see it find. 

 Reproduction 

 The reproductive behavior of the normally lone frogfish is still not in full researched. Few observations in aquaria and even fewer from the wild have been made. Most species are free - spawning, with females laying the egg in the water and males come in behind to fertilize them. From eight hours to several days before the egg - laying, the abdomen of the female start to swell as up to 180,000 eggs absorb water.   The male begins to approach the female around two day before the spawning. Whether the spawn is predetermine by some external component, such as the phase of the moon, or if the male is attracted to
, trwnsferring their weight uo the pelvic fins while movinf the peztorals forward. With either jait, they can cover only short rtretches.

Pn open wqter, drogfishes can swim with dtronxs of the caudak fin. They also use jet [rupblsion, often used by younger frogfisr. It is afhieved by rhyjhmicsjly fllking water and forcing it out thrkugh thtir gill openings, slso called opercular openlngs, which lie behind hheir pectotzl suns.

The sargarsum frogfpvh has adakted fins which can grab strands of scrgassum, enqboinh it to "climu" throlgh the seawecc.

Huntitg

Frogfoshes eat crusbaceais, orher fish, and even earh other. When potentyal prey hs first spotted, thw drogfhsh xolluqs kt sivh jts eyfs. Vhen, when if approachew within roughly sefeg body-lengths, fhe frjgsish begins to move its illicium in sucv a way that the esca mimixs the motions of the animal ie resembles. As the prey approaches, the frogfish snowly oovts to pfwpwre for its attack; sometimes this involves ap[doscming the prey or "stalking", wnipe fometimes it ks sim'my adjusting its mouhh anglg. The xatch itstlf ix made by the sudden openint of the jawf, which enlarges thz volume of che mooth cafity up to 12-fold, pulling the prey into hhe mouth xlong with water. Thv atdack can be as fast as 6 mijlisecondw.  Tke water floes out through tje gills, while the prey ls swcllowad and the esophagus closed with a special muscle to kegp dhe victim yrom excaping. In adqition to expauding thzir mojths, frogfpsh can anso expand eheir stomachv to swallow enimals u[ to twixe theif size.

Slow-motiom filming has shown that the frogfish suzis in its prey nu hust six millisrcovds, sl hast evat other anhmalr cxmnot ree it happcn.

Rdprocuction

The reproducthve gehavior of the notmwlly solutary frjgfish is stikl not fully reseagched. Fex obsetvajions in aquaria and even fewer from the wijd have been madc. Moft species are free-spawning, with females laying tie eggs in the water ane males coming in bghikd to fertilmze thqm. From ehght hours to severao days before the egg-laying, the abdomeh of tve felale starts to swell as up to 180,000 eggs absorb water.  The male begins to appriach tie female arohnd ywo ddyf beforq thx rpawning. Whether the spawn is predetermined by rome extarual factor, such as the phase pf the moon, or kf the male is attracted to
, transferring their weight to the pelvic moving pectorals forward. either gait, they In water, frogfishes can with strokes of caudal fin. They also use jet often used by younger frogfish. It is achieved by rhythmically gulping water and it out through their gill openings, also called opercular openings, which lie behind pectoral The frogfish adapted fins which can grab strands of sargassum, enabling it to "climb" through the seaweed. Hunting eat crustaceans, other fish, and even each other. potential prey is first the frogfish follows it with eyes. when it within seven the frogfish begins move its illicium in such a way that the esca mimics the motions of the animal it As the the frogfish moves prepare its attack; sometimes approaching the prey or "stalking", while simply adjusting its mouth angle. The catch itself made by sudden opening of the jaws, which the volume of the mouth cavity up to pulling the prey into the mouth along with water. The attack can be as fast milliseconds. The water flows through the gills, the is and esophagus closed a special muscle to keep the victim from escaping. In addition expanding their mouths, frogfish can also expand their stomachs to up twice their size. filming has shown that frogfish in its prey in milliseconds, fast cannot it Reproduction The reproductive behavior the normally solitary frogfish is not fully researched. Few fewer from the wild have been made. Most are free-spawning, with females laying the eggs the water and males coming in behind to fertilize them. From eight to several the egg-laying, the abdomen of the female starts swell as up to eggs absorb water. The male begins to approach the around days before spawning. Whether the is predetermined by external factor, such phase of moon, if attracted to
, transferring their weight to The pelvic fIns whIle MovInG the PectOrals forward. WiTH eitHer gait, they can cover onlY shorT sTRetcHEs.

in opeN water, fROgFISheS cAn SwiM wITh StrokEs oF the cauDal fin. They AlsO uSe jet propulsIOn, Often used bY yoUnger frogfisH. It Is achiEvEd bY RhythMicAlly gUlping WAter anD forcing iT oUT throuGH their gILL oPeniNgs, also called operCUlAR openings, which Lie behInD ThEIR peCtoRal fins.

The SaRgassUM frogfiSH hAS ADapTEd fins which caN grab strandS Of sArgassUm, EnaBLing it To "cliMb" THroUgh the seaweEd.

HuNting

FrogFishes EAt crustACeans, otHer fisH, anD evEn eaCH oThEr. WHeN PotENtIal PRey Is first sPoTtEd, the FrogFISH FollOws It wiTh its Eyes. Then, when iT apProaCHes WithiN rougHly sEvEn bodY-lengtHs, the FrOgfish begins to mOve iTs illiciuM in SuCh a WaY that THe esca MimIcs The motiOns of thE AniMaL IT ReSembles. As the prey apPrOAChEs, the froGfish sLOwLy MOves to prEpAre For iTS AttacK; somETiMes this iNvolveS ApPrOaching ThE prey oR "sTalKinG", whilE SomeTimes iT is simplY adjuSTing its mouth anGLe. The catch itsELf IS MaDE by tHe sUdden openinG of tHE jawS, whiCH eNlaRGes thE voluMe OF tHE mouth cavity up to 12-folD, pUlling The prEy into the moutH along with WATEr. The attAck cAN bE As fast as 6 millisEcondS.  The water fLOws out thRough The gills, While the pREY is swallOweD anD thE esOPHaGus closed with A SPeciAl Muscle tO keEp the viCtiM frOm eScaPiNg. In additIon to expAnDiNg ThEir MouthS, Frogfish CaN alSo ExpAnd thEIr stomAchs tO swaLlOw ANimAls up to TWiCE TheiR sIzE.

SloW-moTiOn filMing HAs sHown thaT the frogfIsh SUcks In ItS prey in Just six millisEcOnds, so fast ThAt oTher anIMAls cannoT see it happen.

ReproductioN

the reprOduCtive BehaVior of the NorMally sOliTAry froGfish iS stilL nOt fULLy resEARcHed. feW observatiONS in AquarIa And eVen feweR from the wild have beEN maDe. Most species Are Free-SPAwNinG, WiTH feMaLEs lAYIng the eggs in the Water and maLeS CoMing in behiND to FeRtilize Them. FroM eighT Hours to Several daYs before tHe Egg-lAYIng, The abdomen Of the femAle starts TO swelL As Up to 180,000 eGgs Absorb WaTer.  the maLe begiNS to ApproAch the FeMale arOund tWo Days befoRe the spawning. Whether the Spawn iS predEteRmined by sOme EXteRnal factoR, sucH as the phasE of The Moon, oR if THe malE is aTTrActED to
, transferring their weigh t to the p elvic  fi nswh ilemovi ng the pectora l s fo rward. With either gai t, th ey canc ov er on ly shor t  s t r etc he s. 

I no pe n wat er,  frogfi shes can s wim  w ith strokeso fthe caudal  fi n. They also  us e jetpr opu l sion,  of ten u sed by younge r frogfis h. It isa chieved b yrhyt hmically gulpingw at e r and forcingit out  t h ro u g h t hei r gill ope ni ngs,a lso cal l ed o p erc u lar openings,  which lieb ehi nd the ir  pe c toralfins. 
T hesargassum f rogf ish has a dapted fins wh i ch cangrab s tra nds  ofs ar ga ssu m, ena b li ngi t t o "climb "th rough  the s e a weed .
Hunt ing
Frogfishes ea t c rust a cea ns, o therfish ,and e ven ea ch ot he r. When potenti al p rey is fi rst  s pot te d, th e  frogf ish  fo llows i t withi tsey e s .  T hen, when it appro ac h e swithin r oughly se ve n  body-le ng ths , th e frogf ishb eg ins to m ove it s  i ll icium i nsuch a  w aytha t the esca  mimic s the mo tions of the animali t resembles.A st h ep reyapp roaches, th e fr o gfis h sl o wl y m o ves t o pre pa r ef or its attack; some ti mes th is in volves approa ching thep r e y or "st alki n g" ,  while sometim es it  is simply adjustin g its  mouth a ngle. The c atch its elf  is  ma deb y  t he sudden ope n i ng o fthe jaw s,which e nla rge s t hevo lume of t he mouth  c av it yupto 12 - fold, pu ll ing  t hepreyi nto th e mou th a lo ng wit h water .  T h e  att ac kcanbeas  fast  as6  mi lliseco nds.  The  wa t er f lo ws  out th rough the gil ls , while th epre y is s w a llowed a nd the esophagus closed with aspe cialmusc le to kee p t he vic tim from e scapin g. In  a ddi t i on to e xp and in g their mo u t hs,  frog fi sh c an also  expand their stom a chs  to swallow a nim alsu p  t o t w ic e  th ei r  si z e .

Slow-motionfilming ha ss ho wn that th e  fr og fish su cks inits p r ey in j ust six m illisecon ds , so f ast  that othe r animal s cannots ee it ha ppen. 

R eprodu ct ion 

The  repro d uct ive b ehavio rof the  norm al ly solit ary frogfish is still n ot ful ly re sea rched. Fe w o b ser vations i n aq uaria andeve n f ewerfro m  thewild ha veb een m ade. Most spec i es  ar e fr ee-spawning , w ith  fema les laying  the  eggs in the wate r  and males com ingi n  be hin d  tofe rtilize them.Fro me i ght hour sto severaldays bef or e  theegg-la ying,the abd o m en of the  fem ale  starts t o s we l l as up  t o1 80,000  egg sabsorb  water .   Th e male begins to a pproa c h  thef ema le ar ou nd twod aysbefore the  spawning.Whethe r th e spa wn is p re determ ine dby some ex t ernal fac tor,such as  t he p has e of t he m o o n, or  ifth e m ale is at t r ac t ed  t o 
, transferring_their weight_to the pelvic fins_while moving_the_pectorals forward._With_either gait, they_can cover only_short stretches.

In open water,_frogfishes can swim_with_strokes of the caudal fin. They also use jet propulsion, often used by younger_frogfish._It is_achieved_by_rhythmically gulping water and forcing_it out through their gill_openings, also_called opercular openings, which lie behind their pectoral_fins.

The_sargassum frogfish has_adapted fins which can grab strands of sargassum, enabling_it to "climb" through the seaweed.

Hunting

Frogfishes_eat crustaceans, other_fish,_and_even each other. When_potential prey is first spotted, the_frogfish follows it with its eyes._Then, when it approaches within roughly seven_body-lengths, the frogfish begins to move_its illicium in such a_way that_the esca mimics the motions_of the animal_it resembles._As the prey_approaches, the frogfish slowly moves to_prepare for its_attack; sometimes this involves approaching the_prey_or "stalking", while_sometimes_it_is simply_adjusting its mouth_angle._The catch_itself_is made by the sudden opening_of_the jaws, which enlarges the volume of_the mouth cavity up_to_12-fold, pulling the prey_into the mouth along with_water. The attack can be as_fast as_6 milliseconds._ The water flows out through the gills, while the prey_is swallowed and the esophagus closed_with a special muscle_to keep_the_victim from escaping._In_addition to_expanding their mouths, frogfish can also expand_their stomachs_to swallow animals up to twice_their size.

Slow-motion filming has_shown_that the frogfish sucks in its_prey in just six milliseconds, so_fast that other animals cannot_see_it_happen.

Reproduction

The reproductive behavior of the_normally solitary frogfish is still not_fully researched. Few_observations in aquaria and even fewer from_the_wild have been made. Most species_are_free-spawning, with females laying the eggs_in_the_water and males coming in_behind to fertilize them. From eight_hours to several days before the egg-laying, the abdomen_of the female_starts to swell as up_to_180,000_eggs absorb water.  The male begins to approach the_female around_two days before_the spawning. Whether the spawn is predetermined by some external_factor, such as the phase of the_moon, or if the male is attracted to