How do birds sleep on branches without falling?

How do birds sleep on branches without falling?

Birds grip branches using a "toe-locking" mechanism. Tendons automatically tighten their toes around the branch when the leg bends, creating a secure hold that requires active muscle effort to release.

Why It Matters

This fact belongs to the general category and contributes to expanding general knowledge. Understanding such facts not only makes you smarter but also helps connect ideas across different fields.

More Insights