Sharks are ectotherms and their internal body temperatures usually reflect the waters they swim in. Holding their breath helps them function in the frigid deep.
On average, half the participants in a study by the University of St. Andrews in Scotland could recognize what either chimpanzees or bonobos were communicating.
Findings from a new study help answer questions about why some people get more severe and transmissible HIV than others — and serve as a reminder that viruses don't always weaken over time.
For the first time, a food stall has been excavated in its entirety in the city. The stall had remnants of 2,000-year-old food — giving researchers a glimpse into Pompeii street food.
Researchers discovered that an octopus might punch a fish when both are hunting. Although some of the thrown punches can be explained, others remain a mystery.
