Earth Matters

Baby dinosaur's tail — with feathers — found in 99 million-year-old amber

Barcelona is putting its pigeons on birth control

Polar vortex: It's baaaaack!

There's no such thing as a snow day for swimmers

7 stunning discoveries about Saturn from the Cassini mission

Meet the gray jay, Canada's new national bird

Why wild giraffes are suffering a 'silent extinction'

Like bees of the sea, plankton pollinate plants

70-mile-long crack develops in Antarctic ice shelf

Beautiful feather stars bring back the '70s

11 animals on the verge of extinction

14 amazing sinkholes