Nature

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

Cherry blossoms paint nation's capital pink

9 famous mirages that play tricks on the eyes

How you can help bluebirds bounce back

Where are Earth's largest nature reserves?

Thousands of bulging methane bubbles could explode in Siberia

These parrots high-five in the air while laughing contagiously

Why do the leaves of some trees turn brown but not drop?

Unusual 'Dr. Seuss flower' discovered by park ranger

Fish found leaving the sea to evolve into land animals

Teen finds 7.44-carat diamond at Arkansas park

California desert comes alive with wildflower 'superbloom'

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