This video is hosted by YouTube. Playing it connects your browser to YouTube (Google). We use YouTube's privacy-enhanced mode, but YouTube may still store data on your device and receive your IP address.
A bottom-dwelling siphonophore off Rose Atoll, American Samoa, from NOAA's 2017 expedition. Siphonophores are colonial animals made of many specialised units; this one holds onto rock with its tentacles.
Written by us. YouTube's own title appears below when available.
Species
dandelion siphonophore
Review
Checked by an AI assistant using the publisher, description and sample frames, then approved by the site owner. Not yet watched in full by a person. (2026-11-05)