Animals
- Paleontology
Extinct giant kangaroos tiptoed one leg at a time
Stiff spines, flared hips and other fossil clues suggest extinct, refrigerator-sized kangaroos stepped one hind leg at a time instead of hopping.
- Animals
A stressful youth makes for a devoted finch dad
Stress is generally thought to be a bad thing. But a new study shows that under certain conditions, a stressful childhood could make a zebra finch a better father.
- Genetics
House fly’s genome hints at detox genes
The house fly's DNA instructions include extra genes that may help detoxify and decompose animal waste.
- Animals
Quick-moving toads take the straight and narrow path
Cane toads at the front line of an invasion in Australia have evolved to move in straighter paths than those left behind.
- Animals
Rattlesnakes tutor robot on dune climbing
Snakes sidewinding up sand inspire design improvements for robots navigating treacherous slopes.
- Animals
Zebra finches use camouflage
In an experiment, zebra finches camouflaged their nests to match the background, even though they lived in captivity and there was no danger of predators.
- Paleontology
Plant-eating dinosaurs coexisted by munching different vegetation
Differences in skulls allowed sauropods to coexist in an arid landscape by enabling the dinosaurs to tackle different plants.
- Animals
‘Planet of the Bugs’ reveals the secrets to insects’ success
Entomologist Scott Richard Shaw explores the evolution of insects and how they came to rule the world.
- Animals
How a saber-toothed cat is like a can opener
A researcher argues that the saber-toothed cat’s teeth acted like an old-fashioned can opener.
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- Animals
Invasive rabbitfish team up to raze algal forests
Tropical rabbitfish have expanded into temperate Mediterranean waters, where they destroy algae forests by gobbling both young and adult algae.
- Animals
Lacking ice, huge walrus herd congregates on Alaska shore
A large group of walruses has hauled out on the beach near Point Lay, Alaska. The animals have been forced onto shore due to a lack of sea ice in the region.
