First Evolutionary Branching For Bilateral Animals Found
Wednesday, September 23, 2009 - 12:36
in Biology & Nature
In the most computationally intensive phylogenetic analysis to date, an international research team has found the first evolutionary branching for bilateral animals. The researchers determined that the flatworm group Acoelomorpha is a product of the deepest split within the bilateral creatures -- multi-celled organisms that, like humans, have symmetrical body forms.