do fish reproduce?
breed in different ways. There are two main strategies that
fish use: egglaying and livebearing. Livebearing female fish
are internally fertilized by the male fish, and carry the fry
for about a month before delivering them. Egglaying fish
lay eggs instead of giving birth to little fish.
Egglayers have many methods of
laying eggs. For example, substrate spawners lay eggs in protected
areas such as plants, rocks, wood. Mouthbrooders actually keep
their eggs in their mouths until the eggs hatch.
is the structure of fish?