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Bizarre, bloblike motion of microscopic creature may give clues to early animal movement – Science Magazine

Choanoflagellates suggest the first animals could morph between swimming and crawling forms

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By Elizabeth PennisiFeb. 24, 2021 , 6:00 PM
Evolutionary biologist Thibaut Brunet was studying single-celled organisms called choanoflagellates when he noticed something strange: The microbes are typically rigid, but when they got trapped in a tight space, they started to move like The Blob (see video, above). In his lab at the University of California (UC), Berkeley, he watched as their external whiplike flagella disappeared; parts of their bodies began to push out, forming bubbles called blebs;…

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