Researchers say their findings represent some of the first evidence that evolutionary changes are affecting the time of year that wild animals give birth.
For animal species to survive climate change, they will have to genetically adapt or shift their ranges—or both.
Our ancestors were subjected to full-strength, undiluted, CFC-free, pure-organic, additive-free natural selection. The biggest recipients were young children, for which evolution had the greatest appetite of all.
Evolution is a gradual change to the DNA of a species over many generations.
The rare letter discusses topics only known in one other letter from the famous biologist.
Scientists argue that religious people are unable to rise above their instincts, explaining the negative association with intelligence.