Beavers are basically a submarine

Added: 2026-05-19

[00:00:00]Beavers can work underwater without going blind because they have clear inner eyelids that slide over their eyes like built-in goggles. Their ears and nose can seal shut. Their lips can close behind their teeth, and that lets them chew sticks underwater without drowning.

[00:00:13]So, a beaver isn't just some dam-building rodent. It's a semi-aquatic construction worker with goggles, nose plugs, ear seals, and teeth that still work while its mouth is underwater.