A woman in Pitumarca, Cuzco Region, Peru, begins weaving a textile on a backstrap loom. She is holding a llama-bone pick, used to help handpick the motifs and to beat (push tight) the weft yarns.
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.