3. Strong kicks: A zebra’s kick can smash a lion’s jaw. Whenever they feel threatened, they resort to kicking, running, or biting to drive away predator. 4. Strong family ties: Zebras are a highly ...

Seals are another marine animal that sleeps with their eyes open. Like dolphins, they have a special way of sleeping. Seals often sleep while floating in the water, and they can keep one eye open to ...