Northern elephant seals sleep in the deep to avoid predators – BBC
Science News
- Northern elephant seals sleep in the deep to avoid predators BBC
- Elephant seals enter ‘sleep spiral’ during ocean dives CNN
- Northern elephant seals can get less sleep than almost any other animal NPR
- You Won’t Believe How Elephant Seals Sleep Underwater Gizmodo
- Seals Survive on Two Hours of Sleep. Why Can’t We? The Atlantic
Source: Science News