Get smart curated videos delivered to your inbox.   SUBSCRIBE
The Kid Should See This

For Kangaroos, Tail Becomes a Fifth Leg – ScienceTake

Watch more with these video collections:

What makes a leg a leg? What if a leg is a kangaroo tail?

In a recent study, scientists observed, recorded, and measured data for five red kangaroos that were trained to walk slowly on a force-measuring platform. Their conclusion from that data: Kangaroos essentially have five legs! When the animal is walking, its muscular tail is used to “support, propel and power their pentapedal gait just like a leg,” and exerts as much force as the four other legs combined.

In the archives: more from ScienceTake and more animal locomotion videos.

This Webby award-winning video collection exists to help teachers, librarians, and families spark kid wonder and curiosity. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content.

Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.