When do whale sharks sleep?

Whale sharks do not have a specific sleeping pattern like many other animals; instead, they experience periods of rest while still swimming slowly. They are known to engage in a behavior called "yo-yo swimming," where they rise and descend in the water column, allowing them to rest while still maintaining buoyancy. This unique resting behavior typically occurs during the night, though they can also be active during the day. Overall, their sleep patterns are adapted to their need for constant movement and feeding.