Animals
- Animals
New HIV-1 group
Scientists have identified another variant of the virus that can cause AIDS.
- Life
Bent innards give orchid its kick
Violent pollen delivery in Catasetum flowers gets its power from temporarily deformed inner strip
- Paleontology
Fossil shows first all-American honeybee
Nevada find contradicts long-held view of Europe and Asia as the native land of all honeybees.
- Animals
Toucan’s bill gives big chill
Bird’s supersized bill can switch personal air conditioning on and off, new research suggests.
- Health & Medicine
Chimpanzees die from primate version of HIV
A new study links the simian immunodeficiency virus to serious AIDS-like illness in a wild population.
- Life
Web decorating with garbage
Spider webs adorned with decaying food remains attract more attacks, but maybe there’s a defensive trade-off at work.
- Earth
Bird deaths blamed on vitamin deficiency
Shortage of thiamine may have been killing birds in the Baltic and possibly elsewhere for some 25 years.
- Animals
Turtles make sense after all
The odd bodies of turtles add a wrinkle to standard land-dwelling vertebrates.
- Animals
Megafish Sleuth: No Steve Irwin
There's no reason a scientist can't be an action hero — even if his damsels in distress have fins.
- Earth
Monster stingrays: Field notes from a global wrangler
A megafish biologist shares what he's learning about a rare freshwater species.
- Life
Climate change shrinks sheep
Milder winters help small, weak lambs survive but more competition for food slows growth.
- Animals
Bat face shapes sound
An oversized appendage in Bourret’s horseshoe bats may aid in long-distance signals.
