熊猫实时视频花絮

A mongoose is lightning fast and has razor-sharp teeth. A black mamba can kill 15 grown men with just one bite. Which of these two mortal enemies will win?

A Mongoose and Black Mamba Fight to Death (2:33)

A hammerhead shark locates a stingray hiding beneath the ocean floor. Unnerved, the stingray makes a dash for freedom but is it too late?

Hammerhead vs. Stingray (2:25)

A diver stumbles across a whale shark trapped in a commercial fishing line. Sensing the diver is there to help, the goliath lies still while the rope is cut.

A Whale Shark Cooperates With a Diver Saving Him (1:28)

One highly influential ancient Middle Eastern civilization established some of the essential systems we still use today. Think you know which it is?

Who Decided to Put 60 Seconds in a Minute? (2:33)