All EpisodesAll Episodes

Creative Commons Licence :

Attribution Non-Commercial

No Derivative

licence cc

Production CNRS

Original Idea

Christian Sardet

Director

Sharif Mirshak

Texts

Christian Sardet, Sasha Bollet

Images

Noé Sardet, Christian Sardet, Sharif Mirshak

Editing

Sharif Mirshak

Sound mix

Sharif Mirshak

Narration

Gregory Gallagher

Sound engineer

Cristobal Urbina

Iridescent Ctenophores - .

time 02:00

Shimmering waves of light, stalking their prey, ctenophores are on the move.

Photo Gallery

Narration

Some gelatinous animals look like luminous prisms spreading waves of color. Though equipped with tentacles they are not jellyfish. They are called comb jellies, or ctenophores, from the Greek words ktenos: for comb and phoros: to carry. 

Ctenophores swim by the synchronous beating of 8 comb rows made of thousands of fused cilia. As they refract light, the beating combs create shimmering waves.

Unlike jellyfish, ctenophores do not have stinging cells. They won't hurt you, but they are carnivorous. Some catch shrimp using tentacles covered with sticky cells called colloblastsOther species can bite and swallow ctenophores much larger than themselves.

With all their colors they can't be missed.

In this episode

Ctenophores

Beroe / Beroe ovata
Leucothea / Leucothea multicornis