Monday word: deuterostome

[ersatz-read.livejournal.com]

deuterostome (do͞o′tə-rō-stōm′), noun

Any animal of the group Deuterostomia, in which the anus develops from the first opening in the embroyo and the mouth develops later.

Starfish and sea urchins are examples of detuerostomes.  As are humans, all mammals, and the creature depicted below (and described in this article).

Etymology:  Latin, deutero, second + stoma, mouth

Comments

[theidolhands.livejournal.com]

Fascinating, and what a great intense photo to illustrate the point!