The Crab and Urchin
Season 01, Episode 03
Crab and Sea Urchin
Air date January 18, 2011
Episode guide
The Undersea Storm
The Walrus Chief

It's bedtime for the Octonauts until a knocking sound wakes up Kwazii and Captain Barnacles. A snail tells them that a green-blue crab and an orange sea urchin are arguing loudly and keeping the sea creatures up. Shellington explains to Captain Barnacles that a crab and sea urchin as in symbiosis, meaning that need each other for food and protection. Then Kwazii suggests "a break from each other", but they find each other again when Barnacles and Kwazii bump into each other. The urchin relies on the crab, just as the crab relies on him.

Creature Report


Watch the episode here

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.