Tag: El Nino

The Shrinking Iguana

September 20, 2010 By arne hendriks 4

Much to his surprise, an evolutionary biologist at Princeton University has found that in times of famine, marine iguanas in the Galápagos Islands shrink in length and then regrow when food is plentiful again. “For vertebrates, it’s sort of a dogma that they don’t shrink,”…