Starting one's sex life and having children at a young age can run in the family. But can pregnancy have beneficial health ...

Scientists at MIT have found compelling chemical evidence that Earth’s earliest animals were likely ancient sea sponges. Hidden inside rocks over 541 million years old are rare molecular “fingerprints ...

When I taught introductory and advanced courses on animal behavior, many students woke up when I talked about the sex lives of a wide variety of animals. While there were a good number of books that ...

Earth’s earliest animals may have held evolution back because they reproduced asexually, creating low-competition communities that changed very little over time. When environmental pressures pushed ...