Scientists have some lab mice seeing red. The animals had their vision genetically upgraded and can now see colors normally invisible to rodents. The finding, detailed in the March 23 issue of the journal Science, has implications for the evolution of full-color, or “trichromatic,” vision in our own ancestors. “What...
The distinction between birds and the dinosaurs from which they evolved is getting even murkier. The genomes (complete DNA sequences) of both groups are short, researchers now say. Scientists used to think that relatively shorter genomes were associated with flight. Birds have short genomes compared to other vertebrates, or animals...