For more than 340 years, science believed a man's sperm wiggled its way to its prize, much like a snake slithering side to side through water. Now, a new study says that movement was an optical illusion.
Dolphins may seem cute and friendly, but one of their ancestors was quite the giant and behaved like a killer whale, a new study has found.
Children and teenagers are estimated to be about half as likely to get infected by the coronavirus than those aged 20 or over, according to research published Tuesday.
Nearly all coronavirus patients who needed ventilators in New York's largest health system to help them breathe died, a study found.