8,095 results
- Ecosystems
Invasive species are a growing global threat
'The Aliens Among Us' describes how invasive species are colonizing — and disrupting — ecosystems worldwide.
- Animals
Young penguins follow false food cues
Juvenile African penguins are being trapped in barren habitats, led astray by biological cues that are no longer reliable because of human activity.
- Climate
Rising CO2 in lakes could keep water fleas from raising their spiky defenses
Rising CO2 in freshwaters may change how predators and prey interact in lakes.
- Animals
Most blue whales are ‘righties,’ except for this one move
Though many blue whales tend to be “right-handed” when hunting for krill, one specific barrel roll move requires a lefty twist.
- Animals
Whales feast when hatcheries release salmon
Whales: “They’re 40 feet long and they’re feeding on fish that are the size of my finger.”
- Animals
Fossil find suggests this ancient reptile lurked on land, not in the water
An exquisitely preserved fossil shows that an ancient armored reptile called Eusaurosphargis dalsassoi wasn’t aquatic, as scientists had suspected.
- Animals
Being a vampire can be brutal. Here’s how bloodsuckers get by.
Blood-sucking animals have specialized physiology and other tools to live on a diet rich in protein and lacking in some nutrients.
- Archaeology
Peru’s plenty brought ancient human migration to a crawl
Ancient Americans reached Peru 15,000 years ago and stayed put, excavations suggest.
- Paleontology
Ancient armored fish revises early history of jaws
The fossil of a 423-million-year-old armored fish from China suggests that the jaws of all modern land vertebrates and bony fish originated in a bizarre group of animals called placoderms.
- Life
Hybrids reveal the barriers to successful mating between species
Scientists don’t understand the process of speciation, but hybrids can reveal the genes that keep species apart.
- Animals
Newly discovered lymph hydraulics give tunas their fancy moves
There’s still some anatomy to discover in fishes as familiar as bluefin and yellowfin tunas.
- Life
How to make a fish face, and other photo contest winners
The tiny face of a 4-day-old zebrafish embryo snags the top spot in microscopy photography contest.
