The sea is full of unique creatures, amazing living organisms and unrevealed secrets. Let's answer some of the most curious questions about marine life! Like, how can fishes sleep if they have absolutely no eyelids? Or how can sea snakes breathe through their skin? And why is a glass octopus so rarely seen in the ocean? Let's delve into the underwater world. Credit: Habitus of Oxydromus pugettensis (Polychaeta: Hesionidae): By Leslie H. Harris – Villalobos-Guerrero, T. F., Harris, L. H. (2012). Oxydromus Grube, 1855 reinstated over Ophiodromus Sars, 1862 (Polychaeta, Hesionidae), CC BY 3.0 https://creativecommons.org/licenses/by/3.0, https://commons.wikimedia.org/w/index.php?curid=22681563 This tusk is from a small toothed Arctic whale called a narwhal: By Wellcome Collection gallery – https://wellcomecollection.org/works/d7nvegmn?wellcomeImagesUrl=/indexplus/image/L0059030.html, CC BY 4.0 https://creativecommons.org/licenses/by/4.0, https://commons.wikimedia.org/w/index.php?curid=36213525 A swimming pinkish orange translucent holothurian (Elasipodida) with intestinal tract visible: By NOAA Photo Library –https://www.flickr.com/photos/51647007@N08/9737470388, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, https://commons.wikimedia.org/w/index.php?curid=32512228 Animation is created by Bright Side.
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