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At its most hurried gait, T. rex hit about 12 mph.
A new study suggests the wolf-dog split took place only once.
Tardigrades are so tough that they'll survive apocalyptic asteroids and gamma ray bursts, astrophysicists say. Biologists say nope.
A crowdsourced study will use radio signals to measure how the ionosphere changes during a total eclipse.
Something has to keep monkeys from talking — is it their brains or their throats?
A rare crystal called tobermorite may help building material resist fracturing.
Two million Australians watched an eclipse on TV while it happened right outside.
Palm cockatoos drum with 'remarkably humanlike' rhythm, each male with his own distinctive style.
You won't notice it in a cup of tea, but liquid water can flip between high and low densities.
Companion events are scheduled in hundreds of cities around the world.