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The ambitious expedition aims to fill data gaps about the glacier-sea boundary to predict when the world might tip into a catastrophic climate regime.

A whole-genome analysis of Beefalo, a hybrid bison-cattle breed, suggests very few individuals have any bison DNA at all, a new study reports.

A majority of 8th-graders and roughly a third of 10th- and 12th-graders do not see great risk in using fentanyl once or twice, a study reports.

A scientist, a jar of pickles and a power strip walk into a room. The punchline involves physics, glowing condiments and a scientific party trick.

Homo floresiensis may have scavenged Komodo dragon leftovers instead of hunting small elephant relatives.

Samples collected at daring heights provide evidence for an untested theory of tree drought adaptation, while countering another.

The Smithsonian Natural History Museum's latest exhibit, "From These Lands," connects visitors with America's natural history.

Analysis of 3,000 incidents in Canada reveals which animal-human activity combos are especially risky. Of note: Elk and campgrounds are a bad mix.

Fake, painted decoys suggest immature coloring acts as a social signal, reducing aggression from territorial nesting gulls.

A private rocket mission aims to boost NASA's Swift telescope before its orbit decays, extending its hunt for gamma-ray bursts.