A new theory emerges for where some fish became four-limbed creatures
Tuesday, December 27, 2011 - 17:00
in Biology & Nature
A small fish crawling on stumpy limbs from a shrinking desert pond is an icon of can-do spirit, emblematic of a leading theory for the evolutionary transition between fish and amphibians. This theorized image of such a drastic adaptation to changing environmental conditions, however, may, itself, be evolving into a new picture.