They can, but only closely related species can do that naturally (such as some poeciliids).
Depends on what species of fish, but average 1,000 .
Some species of fish stay with their offspring, or babies. Most other fish will release eggs into the waters they live in, and the fish develop and grow on their own.
Have different animals have babies then let those babies have babies with different animals.
Some species do and some don't
Different species of fish have different numbers of chromosomes. Try asking for a specific species of fish and someone will help you.
No. Species don't inter breed
No. Two animals of different species cannot breed.
No. They are completely different species.
There are almost 70 different species that are commonly called "Flying fish".
Different species use different methods.
Duh.I like cheese.
No, mice and rats are two different species. Rats have rat babies, mice have mouse babies.