Animals
- Climate
Year in review: Sea ice loss will shake up ecosystems
Researchers are studying the complex biological consequences of polar melting and opening Arctic passageways.
- Animals
Why crested penguins lay mismatched eggs
After long migratory swims, crested penguins lay one small and one larger egg.
- Animals
Why a mountain goat is a better climber than you
For the first time, scientists have analyzed how a mountain goat climbs a cliff. Big muscles in the shoulder and neck help a lot, they find.
- Animals
First spider superdads discovered
Male spiders first known to give up solitary life for offspring care, often as a single parent.
- Astronomy
Scientific success depends on finding light in darkness
Editor in chief Eva Emerson discusses using cleverness and persistence to uncover scientific truths.
- Animals
Plant-eating mammals sport bigger bellies than meat eaters
Mammalian plant eaters have bigger torsos than meat eaters, a new analysis confirms, but the same might not have held true for dinosaurs.
- Animals
Animals give clues to the origins of human number crunching
Guppies, dogs, chickens, crows, spiders — lots of animals have number sense without knowing numbers.
- Oceans
Coral die-off in Great Barrier Reef reaches record levels
Bleaching has killed more than two-thirds of corals in some parts of the Great Barrier Reef, scientists have confirmed.
- Health & Medicine
Low social status leads to off-kilter immune system
Low social status tips immune system toward inflammation seen in chronic diseases, a monkey study shows.
- Animals
Dogs form memories of experiences
New experiments suggest that dogs have some version of episodic memory, allowing them to recall specific experiences.
- Animals
Now there are two bedbug species in the United States
The tropical bedbug hadn’t been seen in Florida for decades. Now scientists have confirmed it has either resurfaced or returned.
- Animals
Brazilian free-tailed bats are the fastest fliers
Ultrafast flying by one bat species leaves birds in the dust.
