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Only mammals give live births <<<<
Whoever wrote that, is incorrect.
There are, in fact, many species of fish that give live births.
In my aquarium, I have guppies and platys, both of which have live young constantly.
I also have tetras, Cory doris, and gouramies. These all lay eggs.
Most fish are egg layers, but there are many species that do give live birth.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoLarge numbers of eggs (high fecundity) always correlate with low survivorship. It is a corner stone of Darwinism that species reproduce more offspring than can survive and "natural selection" weeds out the less fit. Of the ~30,000 species of bony fishes, there is tremendous variation in fecundity. Some fish (e.g., the Ocean Sunfish) lay >50 million eggs, while others (e.g., the common guppy) give live birth to <100 offspring. The key to the difference is parental care.
Wiki User
∙ 12y agoThe answer to that is pretty simple. In the wild defenseless baby fish are easy targets for other fish. It's very easy for these baby fish to get swallowed whole and become a snack for someone else. Natures answer to that is for fish to have large broods of fry to increase the chance that some of them will survive.
Wiki User
∙ 6y agoBecause the mom fish would have to lay eggs because she might not know then she might lay the eggs plump like that.
well they cant give life birth so they lay eggs
Wiki User
∙ 13y agoflamingo lay egg instead of giving birth is because they is not actually human just like any mammal or creature.
Wiki User
∙ 14y agoSome fish do have babies.
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Do birds give birth to their young instead of laying eggs and hatching them?
No, birds lay eggs.
Does starfish lay eggs instead of giving live birth?
it lays eggs
How long are barn owls pregnant?
Great Horned Owls and birds in general don't actually become pregnant the way most mammals do. Most mammals give birth to live young. Birds lay eggs instead of giving birth. Once the eggs are laid, incubation for Great Horned Owls is about 33 days.
What are two mammals that lay eggs instead of giving birth to live young?
Echidna and platypus.
Do birds lay eggs or giving bith?
they lay eggs
Does Lugia give birth to live offspring?
The answer I know is yes, she does give live birth instead of laying eggs. The internet lies about Lugia giving birth.
How reptiles different from mammals?
they are cold blooded, and lay eggs instead of giving live birth like mammals.
Do birds give birth or lay eggs to live young?
birds lay eggs
How do toucans have birth?
They don't. They are birds. They lay eggs. Eggs hatch. Baby birds.
What is momotremes?
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals.
Why do birds have eggs instead of live birth?
That is an evolutionary question. The simple answer is generally considered to be that eggs weight less than fully hatched chicks, and therefore it would make it difficult for a mother bird to fly if she were carrying five chicks instead of five eggs. As for flightless birds, if they evolved from birds of flight, then there is no evolutionary reason that they would have become viviparous.
What give birth to live young mean?
Basically, there are two ways for animals to make new animals. Either by laying eggs (like birds) or by giving birth. Giving birth means the mother producing a baby version of herself, like humans.
