The Sea Urchin’s Tale

To view the video, click on the screen shot.

THE (NEARLY IMMORTAL) LIVES OF SEA URCHINS IS THE FOCUS of this terrific video from the terrific folks at PBS’s Deep Look.

Like most marine denizens, they endure long – and perilous – journeys as tiny larvae before settling into on some suitable substrate for a life eating algae. Once they transform into adults, they’re pretty much invulnerable, says Deep Look, with life expectancy as long at 200 years. The transformation process is amazing.