Scientists have fiercely debated the origins of the orb-style web. A new study challenges the idea that all spiders who make this web had a common ancestor.
It’s possible that they aren’t, it’s just that you have trouble reading neutral facial expressions because of your family experience, a new study suggests.
Where development and fragmentation have disrupted natural cycles, teams run controlled burns every spring to help sustain prairies and other ecosystems that have long been shaped by fire.
Scientists described in depth a species of ants in Southeast Asia that fight attackers by rupturing their own abdomens to release a sticky fluid laced with toxins.
Tiny crustaceans complete a massive daily vertical migration in the world’s oceans. New research suggests their commute may play an important role in the health of the planet.
The Oklahoma congressman’s nomination languished for more than seven months as senators raised objections to his record, and now additional concerns have been raised.
By KENNETH CHANG
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CreditNASA Goddard Space Flight Center/Conceptual Image Lab
The herd of southern mountain caribou, the last in the contiguous United States, has dwindled to three animals. Conservationists attribute the decline to development in Canada.
