<P> The number of young released by the male seahorse averages 100 -- 1000 for most species , but may be as low as 5 for the smaller species , or as high as 2,500 . When the fry are ready to be born , the male expels them with muscular contractions . He typically gives birth at night and is ready for the next batch of eggs by morning when his mate returns . Like almost all other fish species , seahorses do not nurture their young after birth . Infants are susceptible to predators or ocean currents which wash them away from feeding grounds or into temperatures too extreme for their delicate bodies . Less than 0.5 % of infants survive to adulthood , explaining why litters are so large . These survival rates are actually fairly high compared to other fish , because of their protected gestation , making the process worth the great cost to the father . The eggs of most other fish are abandoned immediately after fertilization . </P>
<P> The number of young released by the male seahorse averages 100 -- 1000 for most species , but may be as low as 5 for the smaller species , or as high as 2,500 . When the fry are ready to be born , the male expels them with muscular contractions . He typically gives birth at night and is ready for the next batch of eggs by morning when his mate returns . Like almost all other fish species , seahorses do not nurture their young after birth . Infants are susceptible to predators or ocean currents which wash them away from feeding grounds or into temperatures too extreme for their delicate bodies . Less than 0.5 % of infants survive to adulthood , explaining why litters are so large . These survival rates are actually fairly high compared to other fish , because of their protected gestation , making the process worth the great cost to the father . The eggs of most other fish are abandoned immediately after fertilization . </P>
how many seahorses are born at one time
how many seahorses are born at one time
averages 100 -- 1000 as low as 5 as high as 2,500
averages 100 -- 1000 as low as 5 as high as 2,500