mating behavior mating amplexus http://id.loc.gov/authorities/subjects/sh85004645 http://purl.obolibrary.org/obo/NBO_0020204 https://en.wikipedia.org/wiki/Amplexus https://www.wikidata.org/wiki/Q477209 A type of mating behavior exhibited by some externally fertilizing species (chiefly amphibians and horseshoe crabs) in which an individual grasps another with his front legs as part of the mating process, and at the same time or with some time delay, he fertilizes the eggs, as they are released from the gasped individual's body. amplexus