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Do Male Fish Have Babies?

Published in Fish Reproduction 2 mins read

Yes, in some species, male fish do have babies.

While the traditional understanding is that females lay eggs and give birth, there are exceptions, most notably seahorses. According to the provided reference, male seahorses carry eggs and release them into the water.

Seahorse Reproduction: A Unique Example

  • Male Pregnancy: Unlike most fish species, male seahorses are responsible for carrying and nurturing the developing eggs. This is a remarkable example of paternal care in the animal kingdom.
  • Egg Protection: The male seahorse has a pouch where the female deposits the eggs. This pouch provides a safe and controlled environment for the eggs to develop.
  • Paternity Assurance: This method also ensures the male seahorse is the father, as the eggs remain within his pouch.
  • Development: The male carries the developing baby seahorses for about 25 days, protecting them until they are ready to be released into the water. This ensures their safety during the early stages of life.


Feature Male Seahorse Most Other Fish
Egg Storage Carries eggs in a pouch Eggs laid externally
Paternity Guaranteed by pouch Less guaranteed
Incubation Male incubates eggs No male incubation


Therefore, while most male fish do not have babies, the male seahorse is a notable exception, showcasing a fascinating adaptation in the animal world.

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