Better food makes high-latitude animals bigger
Monday, January 25, 2010 - 18:49
in Biology & Nature
(PhysOrg.com) -- New research suggests that animals living at high latitudes grow better than their counterparts closer to the equator because higher-latitude vegetation is more nutritious. The study, published in the February issue of The American Naturalist, presents a novel explanation for Bergmann`s Rule, the observation that animals tend to be bigger at higher latitudes.