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First of all there are only two mammals in the world that lay eggs: the Platypus and the echidna. The size ratio from the size of a fish to the size of their eggs is much bigger then either of these two mammals. So looking strictly at the amount of eggs that these animals can have, the fish has the advantage. Also, Both of these mammals don't have many predators because of their advance defenses. A platypus has spurs on its ankles that can deliver a deadly toxin and the echidna is a glorified porcupine! So, they don't necessarily need to reproduce quickly. Whereas a fish has an infinite number of predators and they rely on their ability to replenish their population to prevent extinction.
What else can I help you with?
Why do fish produce more eggs than mammals?
It's a survival thing. Many eggs are eaten before they have a chance to hatch. Many are eaten shortly after hatching. The chances are that 9 of 10 won't make it the first week, then even if they do, their chances of survival diminish quickly.
Who have more fertilized eggs frogs eggs or fish's eggs?
Fish
Are reptiles more closely related to mammals or to fishes?
Reptiles are more closely related to mammals than to fishes. Reptiles and mammals are both part of the group called amniotes, characterized by their ability to lay eggs on land. Fish, on the other hand, are a separate group with distinct evolutionary lineages from reptiles and mammals.
Are fish more closely related to mammals or fish and why?
no
Is a reptile more of the fish or a mammal species?
Reptiles are neither mammals nor fish. Taxonomically, they are more closely related to mammals.
Why do fish have high number of offspring?
because fish eggs are so small, fish can fit more eggs in the womb.
Why fish don't have penis's?
The penis is a mammalian copulatory organ; fish are not mammals and so they don't have penises. Some have copulatory ograns that are similar to a penis, such as guppies, but most fish fertilize eggs externally and so a penis would be completely unnessesary.
Are you more likely to find frog eggs in a pond with lots of fish or a pond with very few fish?
One is more likely to find lots of frog eggs in a pond with a small amount of fish because frog eggs tend to be eaten by fish sometimes. So less fish equals more eggs that survive.
Are you more likely to find frog eggs in a pond with lots of fish or a pond with very few fish why?
One is more likely to find lots of frog eggs in a pond with a small amount of fish because frog eggs tend to be eaten by fish sometimes. So less fish equals more eggs that survive.
What do platy fish eggs look like and how can they be distinguished from other types of fish eggs?
Platy fish eggs are small, clear, and round in shape. They can be distinguished from other fish eggs by their size and transparency. Platy fish eggs are typically smaller and more transparent compared to other types of fish eggs.
Are reptiles more close to mammals or fishes?
Fish
Is a fish a mammal?
nono no, if it lays eggs, it is not considered to be a mammal.
