Some fish enjoy a nap. All members
of the parrotfish family sleep at night. They make a bed out of their
own saliva that covers them fully. Then they go to sleep on the sea
floor. But most other types of fish continue to swim slowly even when
they are resting, so it's difficult to tell if they have gone to sleep.
Sunfish
Do Fish Look After Their Eggs?
Most fish lay their eggs and then swim away. But not the sunfish, they
make very caring parents. The male sunfish actually guards the female's
aggs until they hatch. This unlike other fish.
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