mercoledì 26 febbraio 2014

NYT Science: CreatureCast: A Tale of Two Urchins

CreatureCast: A Tale of Two Urchins
By Sofia Castello y Tickell, Robert Lamb, Casey Dunn

Many different species do similar things. The pencil sea urchin and green sea urchin, for example, are both grazers in the coastal waters of the Galapagos Islands.

Published: February 26, 2014 at 5:00AM

via NYT Science http://nyti.ms/1fra35c