Fish can have gestations that extend from a few days to several months. For instance, swordtails can gestate for up to 50 days while guppies can only do so for 21 days. The gestation period of larger fish, like sharks, can last up to 18 months.
The female fish will carry the eggs inside her body throughout the gestation period. As she fights to keep her eggs safe from predators, she could become more aggressive during this time. As they concentrate on carrying and safeguarding their young, certain fish may also cease eating during this time.
The female fish will either lay eggs or give birth to live offspring after the gestation period is over. While some fish species carry their eggs in their mouths until they hatch, others lay their eggs on vegetation or rocks. Fishes sleep, right?
Fish do take naps, albeit they don’t do so as frequently as people do. Fish could become more inactive at night or seek out a peaceful place to rest during the day. Even some fish have unique structures that resemble sleeping bags where they can rest and hide from predators.
Additionally, fish have an original method of brain rest. Fish must actively pump water over their gills in order to access the continuous supply of oxygen their brains receive from humans. Fish will frequently slow down their gill movements in order to relax their brains because this pumping action might be exhausting.
Finally, depending on the species, fish pregnancy might vary substantially. The mother fish will carry and guard her offspring during the gestation phase, which can extend from a few days to several months. Fish do have moments of rest, and they have special ways of giving their brains a break, but they don’t sleep the same way that people do.