The living northern lights of the deep sea. The comb jelly Cestum can change its shine in seconds, from clear to blue, pink, & even green. Growing up to a meter long, its so delicate it feels like moving water.
#openoceans #dailyjelly
Video by A. Semenov: http://bit.ly/39MwVBh 

The mouth of the comb jelly Cestum is at the center of their long body, rather than the end. Making their movement more like doing the snake with your arms rather than the swimming of a fish or eel.
Photo by: https://www.flickr.com/photos/a_semenov/23003342862