Sloth size and habitat shifted multiple times over the past 35 million years, but human hunting likely drove the slower, ...

Understanding historical bacteria evolution could lead to better infection control in the future.

Learn more about why we trust people from a low socioeconomic background over those who grew up with privilege.

Learn why more people are choosing dogs over having children and what this says about modern families.

Learn why antidepressants are the new hot topic in cancer research, as they can boost the immune system to fight tumor cells.