how many times do seahorses reproduce?
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Male Contractions A pregnancy lasts from 10 to 25 days, depending on the species. The reproductive process begins when a male and a female seahorse do daily pre-dawn dances, intertwining their tails and swimming together. Eventually they engage in a true courtship dance, which can last as long as eight hours.
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Instead of growing the baby seahorses inside their belly in a uterus, like human mums do, the seahorse dads will carry the babies in a pouch, a bit like a kangaroo's pouch. To produce babies, seahorses have to mate first. ... The eggs are fertilised by the sperm, and then start developing into baby seahorses.
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About two to four weeks following mating, the female lays her first clutch of eggs, so they are oviparous, like most reptiles (though there are lizard species that experience ovoviviparous and even viviparous reproduction).
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Mares usually foal about 330 to 345 days after a successful breeding, but they may foal a week or so earlier or later than this window. Experienced broodmare managers know some of the usual signs that show a mare is close to giving birth. However, first-time breeders may not as be familiar with these signs.
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Like other fish, seahorses change colour using small, sack-like organs known as chromatophores, which are embedded in their skin. ... Chromatophores are controlled in two ways: by the nervous system (when rapid camouflage is required for predator avoidance) and by hormones (during courtship and breeding).
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Answer. Hey ! As we know seahorse is an water animal while horse is a land animal also seahorse have a tail like structure which help them. to move in water easily while horse has four legs. Even in seahorses males reproduce baby not females.
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A Horse Sperm Cell Has A Haploid Number Of 32 Chromosomes.
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A female elephant who is not pregnant or caring for a calf goes through an annual estrus cycle. The average birth rate is 21 percent annually, or approximately one live birth for a female elephant every five years, according to the Elephant Research and Education Center website.
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Male Seahorses Like Big Mates. Summary: Male seahorses select partners based on their body size, according to a new study. ... However, clutch, egg and offspring size all increase with female body size in seahorses, suggesting that males may obtain fecundity benefits by mating with large-bodied females.
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Internally, seahorses lack teeth and a stomach and have to eat pretty much continually to live. They're largely monogamous, with charming, elaborate daily rituals between mates. Beyond their general horsey shape, they may be best known for the fact that the male does the childbearing.
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Out of the entire animal kingdom, male seahorses (and their close relatives, pipefish and seadragons) are the only males in the world that undergo pregnancy and give birth to their offspring.
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Known lifespans for seahorse species range from about one year in the smallest species to an average of three to five years for the larger species.
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THEIR GESTATION PERIOD MAY BE 3.5 YEARS LONG. A study of frilled sharks in Japan revealed that the animals breed year-round; litters typically consist of six pups, which emerge from eggs while still in the mother's uterus and are then born live.
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Longfin eels breed only once, at the end of their life. When they are ready to breed they leave New Zealand and swim all the way to the sub-tropical Pacific Ocean to spawn, probably in very deep ocean trenches. When they reach their destination, the females lay millions of eggs that are fertilised by the male.
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In addition to being good hitchhikers, Zebra Mussels also reproduce quickly, which helps their population to spread and increase very fast. They are able to reproduce within 1 to 2 years and females release over 1 million eggs at a time! This allows these critters to multiple at an astonishing rate.
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In fact, some species of seahorse can give birth to more than 1,000 babies at once! ... That's right, males sometimes eat their own babies. It's tough being a baby seahorse. Of the hundreds of babies that the male gives birth to, only one or two will survive to become adults and have babies of their own.
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No captive-born orca yet has. There are currently 59 orcas in captivity at sea parks and aquariums throughout the world. Some are wild-caught; some were born in captivity.