Watch the Video Click here to watch on YouTube Have you ever seen a zonkey? We typically think of zebras and donkeys as ...

In humans and many other animals, specific chromosomes determine sex. But how did researchers discover these so-called sex chromosomes? Throughout the many observations that led to this conclusion ...

These organisms have independently evolved several important biological characteristics, such as multicellularity, complex ...

Sometimes it’s easy to see when animals are stressed or anxious. They may pace back and forth, spend their days in hiding or be unusually aggressive. Getting sick frequently or ...

In humans and many other animal species, sex is determined by specific chromosomes. How did researchers discover these so-called sex chromosomes? The path from the initial discovery of sex ...

For the study, scientists from the University of New South Wales gathered data on the sex chromosomes and lifespan of 229 ...