I searched for "animal phyla" and got an entire series describing ALL the phyla, even the most obscure ones. This is gold, I'm so grateful that you're makiing these!
Love the video, exact. I doubted that the tentacles of entoprocta are said to be solid and that of bryozoa are hollow. Could you circle back to it? I may be wrong, but your answer will be greatly appreciated.
Question, Professor Dave. At 4:20 you mention this species releases sperm into the water column and captures sperm from other worms. Can they actually capture and use their own sperm for reproduction, or is there some mechanism they use to distinguish their own sperm from the sperm of other worms? Thanks for another enlightening installment in this series. I'm enjoying it very much and learning a lot.