Shark fishing boats at sea for weeks at a time, sleeping on the

How do white sharks sleep?

Project Hiu (@projecthiu) • Fotos y videos de Instagram

Sharks - NYSDEC

Offshore At Night - On The Water

Do bull sharks practice sleep swimming? - Quora

How to survive a shark attack – or better yet, avoid one entirely

Shark - Wikipedia

Great white shark recorded asleep for the first time ever, The Independent

Caught on Video: Mako sharks jumps on boat fishing in Whitianga, New Zealand - ABC11 Raleigh-Durham

The fishermen and the sharks - Australian Geographic

Gary Shteyngart: Crying Myself to Sleep on the Icon of the Seas - The Atlantic

The Cave of the Sleeping Sharks (La Cueva de los Tiburones Dormidos), Isla Mujeres