Life
- Paleontology
Early hunters are guilty as charged
Scientists find that hunting is the likely cause of New Zealand's prehistoric bird extinctions rather than habitat destruction or pest introduction.
- Paleontology
Did Mammals Spread from Asia? Carbon blip gives clue to animals’ Eden
A new dating of Chinese fossils buttresses the idea than an Asian Eden gave rise to at least one of the groups of mammal species that appeared in North America some 55 million years ago.
- Plants
Fringy flowers are hard to dunk
The fringe on the edges of the floating blooms of water snowflake flowers helps protect the important parts from getting drenched in dunkings.
- Ecosystems
Are They Really Extinct?
A few optimists keep looking for species that might already have gone extinct.
- Paleontology
Duck-faced croc had a gap-toothed grin
Paleontologists have unearthed fossils of a tiny crocodile that boasted a smile like no other: The animal had no teeth across the entire front of its mouth.
- Animals
Honey-Scented Elephants: Young males’ faces drip sweet signals
An Asian bull elephant just reaching maturity secretes a liquid from glands on its face that smells like honey.
- Paleontology
No Olympian: Analysis hints T. rex ran slowly, if at all
Tyrannosaurus rex, a bipedal meat eater considered by many to be the most fearsome dinosaur of its day, may not have been the swift Jeep-chaser portrayed by Hollywood.
- Ecosystems
Cryptic Invasion: Native reeds harbor aggressive alien
A mild-mannered reed native to the United States is getting blamed for the mayhem caused by an evil twin.
- Paleontology
Dinosaur tracks show walking and running
A single trail of dinosaur footprints found in a British limestone quarry preserves a record of two different walking styles in the same animal, a tantalizing clue that some types of lumbering, bipedal dinosaurs could also run if the need arose.
- Ecosystems
Biodiversity Hot Spots: Top 10 sea locales make sobering list
Biologists have identified the world's most vulnerable coral reefs, each with organisms found nowhere else and threatened by human influence.
- Animals
Yellower blue tits make better dads
The yellow feathers on a male blue tit's breast could tell females that he'll be a good provider for the chicks.
- Plants
Tropical plants grow cool flowers
Tropical plants that position their flowers in the general direction of the sun are keeping the temperature comfortable for pollinators.
