Sea Cucumbers Have Multipurpose Butts

Meet the most versatile butts in the animal kingdom
Subscribe! http://bit.ly/1FkxVLb ‖ Twitter! https://twitter.com/gross_science Tumblr! http://grossscience.tumblr.com/
↓Want more info?↓

(Primary Literature) The anus as a second mouth: anal suspension feeding by an oral deposit-feeding sea cucumber: http://bit.ly/2ibnzXa

(Primary Literature) Mechanisms involved in pearlfish resistance to holothuroid toxins: http://bit.ly/2ibg4z8

(Primary Literature) When a repellent becomes an attractant: harmful saponins are kairomones attracting the symbiotic Harlequin crab: http://go.nature.com/2ibltGv

Host, Writer, Editor, Animator
Anna Rothschild

Camera, Sound
Zachary Hoffman

Welcome to the Circus a
Music Provided by APM

Original Footage
©WGBH Educational Foundation 2017


Images of Sea Cucumber Butts
By Klaus M. Stiefel

Graceful pearlfish (Encheliophis gracilis) living inside sea cucumber (Bohadschia argus) on reef, West Papua, Indonesia
Getty Images/BBC Natural History

A common, large sea cucumber (Bohadschia argus) is easy to identify due to its distinctive pattern. This species can extrude sticky defensive threads called cuverian tubules.
Shutterstock/Ethan Daniels

Cloaque Femelle
Wikimedia Commons/Au Domaine des 3 Coqs

Swimming Crab – Lissocarcinus Orbicularis on Sea Cucumber
Wikimedia Commons/Prilfish

Lissocarcinus orbicularis LandaaGiraavaru
Wikimedia Commons/MDC Seamarc

Pseudocolochirus axiologus
Wikimedia Commons/Marrabbio2

Pearsonothuria graeffei bouche
Wikimedia Commons/Frédéric Ducarme


(used with permission from author)

Squeak Pack/squeak_10

Produced by WGBH for PBS Digital Studios



Leave a Reply

Your email address will not be published. Required fields are marked *