Study reveals of a symbiotic relationship between non-skeletal coral and crinoid that was thought to have ended 273 million years ago.The coral would attach to the body of the crinoid, also known as a sea lily, below its feeding appendage, the coral grew and both went deeper into the ocean.
https://ift.tt/3eEd6QU via /r/science https://ift.tt/33yzXqT
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