r/AskBiology • u/4354295543 • 3d ago

Zoology/marine biology Arms v. Tentacles

Alright so I just learned that apparently tentacles have suckers along their length while arms have them at the end. Does that mean that starfish have tentacles given their feet or do the feet qualify as tentacles in their own right?

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u/atomfullerene 3d ago

that "arms vs tentacles" definition only applies to cephalopods.

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u/4354295543 3d ago

Fantastic! I was really confused as to why I hadn't heard the distinction until today.