Animal-human encounters have risen significantly due to shared habitats and increased conservation.
Researchers reviewed a number of studies into turn-taking behavior in the animal kingdom.
There is no federal law against dismembering a dead body and selling the parts to any buyer, unless those parts are for transplant or from a Native American.
Some estimates say there are fewer than 30 vaquitas left in the world.
"It's likely that all great apes can understand at least some of this system of gestures."
Scientists aren't sure when the human lineage became "behaviorally modern."
"Acoustic researchers had been frustrated by the size limit for years, so it's satisfying to find a way to overcome it."
New evidence reveals a previously unrecorded indigenous population and poses a major challenge to existing theories about the earliest Americans.
For as much as it might reveal about ancient island cultures, the art itself is incredibly tiny.
We've looked for anti-aging secrets in short-lived organisms from worms to yeast, but the killifish is a vertebrate, making it a much better analog to humans.
We know how to find win-win situations.
A new survey finds that humans are about as tall, fit and long-living as we'll ever get.
Entrepreneurs are pursuing some eyebrow-raising possibilities.
Human remains from South Africa indicate first humans diverged up to 350,000 years ago.
Hawking said we need to leave within 500 years "if humanity is to continue for another million years."
The findings could potentially shed light on the behavior of other animals where female aggression is high.
Science debunks the myth that humans have a poor sense of smell.
The discovery of more remains in a hard-to-reach cave raises more questions than it answers about Homo naledi and humans.
The four-legged creature from the Triassic period is the oldest species from the lineage that leads towards dinosaurs.
A study shows cats might be less opportunistic than their reputation suggests.