Do you mean "Why do fish lay so many eggs at one time? The reason fish lay so many eggs at one time is survival. The more eggs that a female lays the better chance more eggs will have a chance to survive.
They lay up to 200,000 eggs
yes they lay billions of eggs one million survive their first year
A mackerel is a fish they can lay up to 500,000 eggs at one time
where do herring lay fish
mud
About how many eggs does a female crab produce
swan can lay about 5 to 7 eggs
The female mackerel can lay up to 500,000 eggs at a time.
about 333,598,130,908
No, separating the male and female is not necessary for the female to lay eggs. In many species, such as chickens, the female can lay eggs whether or not a male is present.
at least 50 eggs per day
They can mate and then the female can lay the eggs.