David Attenborough 'coming to terms' with memory loss (but no, he's not retiring)

Book sheds new light on the hermit who shunned humanity for 27 years

Lyrid meteor shower to peak on Earth Day

13 amazing things animals can do with their bodies

Giant shipworm the size of a baseball bat found alive for first time

Do you know your national parks?

California desert comes alive with wildflower 'superbloom'

Bizarre new species of crab lives entirely in trees

8 iconic plants and trees that herald spring

Are these massive tunnels in South America the work of giant sloths?

Drink in the hue of a Texas bluebonnet bloom

World's largest dinosaur footprint shows just how enormous these beasts were