Mating & Reproduction Organisms Are sea urchins bad parents? Peter Etnoyer May 24, 2009 echinodermNational GeographicReproductionSea UrchinSex Weekurchin sex Sea urchin offspring have one of the coolest names in the plankton. They’re called “pluteus” larvae. Yet, according to this narrator, urchins don’t know or… View More Are sea urchins bad parents?
