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

Feather star swimming off the coast of Japan

This is a feather star swimming off the coast of Japan. Feather stars are crinoids or crinoidea, meaning “Lily-like” in Greek, and thrive in the Indian Ocean up to Japan, as well as in the Atlantic. From Wild Singapore

Feather stars can move about by moving their arms. They crawl over soft sediments, using their arms to drag themselves over the surface, lifting up the central portion of their bodies. Their arms and pinnules have tiny hooks that catch on the surface. They can also swim by thrashing their arms in the water in co-ordinated strokes. However, feather stars usually only crawl or swim to get away from predators. They usually don’t move around very much once they find a good spot to settle on. Feather stars are usually perched on top of tall living or dead hard corals, sponges and other sturdy anchors. Here, they extend their arms into the currents and gather food. 

Update: Here’s another example via National Geographic:

File under echinoderms, the 600-ish species of crinoids are, of course, related to sea stars. Here are more videos of both.

🌈 Related videos

The flannel moth caterpillar is furry, brightly colored, & venomous

Rion Nakaya

Under The Dock, a marine life series by Hakai Institute

Rion Nakaya

The Pangolin – Nat Geo Wild

Rion Nakaya

Bioluminescent Deep Sea Creatures

Rion Nakaya

A close up look at velvet worms (Peripatoides novaezelandiae)

Rion Nakaya

Sea cucumbers are underwater vacuum cleaners

Rion Nakaya

Swimming Feather Starfish

Rion Nakaya

What do sand dollars look like when they’re alive?

Rion Nakaya

The melibe nudibranch grabs at food with a net-like mouth

Rion Nakaya

Get 7 smart videos delivered every week.

 

Subscribe