Thursday, November 14, 2019
Cowbirds outsource parenting to other species, but an innate password tells their children to copy cowbird songs.
Unvaccinated children who contracted the illness lost their immunity to many other infections.
Despite high-profile study, the ancestors of humans living today likely evolved in many places at once, say critics.
Underground species eats or buries its dead, depending on likelihood of catching disease.
A month's worth of cool science stories summed up.
Corral Bluffs location contains fossils from a critical time in the evolution of mammals.