Mars, like Earth, may be experiencing climate change.
An ancient skeleton from a Chinese cave shows how far humans walked when they left Africa.
Scientists have invented a ring-shaped device that’s invisible to microwaves.
A crocodile’s special heart may help it digest large, bony meals.
A large swath of seafloor at the bottom of the Pacific Ocean lacks sediment.
Mating season turns distracted male prairie dogs into easy pickings for predators.
The feet of zebra tarantulas can produce silk threads that may help them get a firmer grip.
A dwarf planet at the fringes of the solar system finally gets an official name.
A vine that feeds on other plants finds its victims by their smell.
The brain begins processing lessons learned during the day long before bedtime.