Dinosaur-eating Mammals (You heard me right): Jeff Hecht at New Scientisthas a good write-up of the discovery of a dog-sized 130-million year old mammal with dinosaur bones in its gut. Most mammals may have been humble little critters during the Age of the Dinosaurs, but at least a few seemed to have turned the tables.
Originally published January 12, 2005. Copyright 2005 Carl Zimmer.