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

Hermit crabs line up to exchange their shells

There’s an extraordinary sight in this clip from the BBC’s Life Story, narrated by Sir David Attenborough: A line of hermit crabs self-arranges from smallest to largest. They’re ready and waiting to exchange their shells—but why? Attenborough explains that “as a crab grows its shell becomes an ever-tighter fit so eventually the crabs need to move into a bigger one.” And so these small decapod crustaceans have organized, hopefully ensuring that each one will quickly find and move into a slightly larger mobile home.

hermit crabs in a line
hermit crabs exchange shells
Related videos: Pagurus Bernhardus changes its shell, a Caribbean hermit crab named Godzilla, a Caribbean hermit crab mass migration, and more videos about crabs.

Also: A molting Japanese spider crab time lapse.

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.

The makers of the SAVE plug-in are no longer supporting it. For site speed and security, I've chosen to discontinue its use. If you have saved videos, please back them up with browser bookmarks, Pinterest, or another page saving tool, before they disappear in May 2021. Thank you.
 
This video was posted 2 years ago.

Watch more videos about...

 

 

🌈 Watch these videos next...

Sand Bubbler Crabs, an up-close look at how they make sand balls

Rion Nakaya

Shorelines, a 1977 stop-motion short by Al Jarnow

Rion Nakaya

Crab Story

Rion Nakaya

Planet-changing ‘invisible’ microbes on the deep sea floor

Rion Nakaya

Scallops have lots of tiny eyes that act like tiny telescopes

Rion Nakaya

Making lime with Primitive Technology

Rion Nakaya

Incredible Teamwork From Little Clownfish – Blue Planet II

Rion Nakaya

1000m beneath the Antarctic ice, where no human has gone before

Rion Nakaya

Blue Planet II, a prequel set to music by Hans Zimmer and Radiohead

Rion Nakaya