Ever since the days of the Greeks, people have tried to prove that thriving civilizations once existed on huge islands that have since sunk beneath the sea.
Earth's earliest known forms of animal life were trailblazers.
“Vision” in single-celled Synechocystis works by principles similar to the human eye.
The fate of the Caspian seal may have been decided ﬁve million years ago.
Robber ﬂies are top predators in the insect world.