Animals
- Animals
Climate change may be shrinking tropical birds
Scientists had previously found that migratory birds are getting smaller as temperatures rise. Dozens of tropical, nonmigratory species are too.
- Materials Science
Researchers have unlocked the secret to pearls’ incredible symmetry
Understanding the structural secrets of how mollusks form symmetrical pearls could inspire more optimal materials for solar panels and space travel.
- Life
Some songbirds now migrate east to west. Climate change may play a role
In recent decades, more Richard's pipits are wintering in Europe than before. It may signal the establishment of a totally new migration route.
- Neuroscience
Brainless sponges contain early echoes of a nervous system
Simple sponges contain cells that appear to send signals to digestive chambers, a communication system that offer hints about how brains evolved.
- Animals
Baleen whales eat (and poop) a lot more than we realized
The sheer volume of food that some whales eat and then excrete suggests the animals shape ecosystems to a much larger degree than previously thought.
- Life
Gene-edited stem cells help geckos regrow more perfect tails
Regenerated gecko tails are a far cry from perfect. Now experiments have coaxed geckos to regrow better ones with nerve tissue and bonelike cartilage.
- Math
An elusive equation describing bird eggs of all shapes has been found at last
A new mathematical equation describes bird eggs of all shapes found in nature, and it could have applications in food and agricultural research.
- Animals
Assassin bugs tap spiders to distract them before a lethal strike
Some assassin bugs stroke their antennae on spiders when within striking distance, possibly imitating touches that spiders experience near their kin.
- Humans
Ancient human visitors complicate the Falkland Islands wolf’s origin story
Scientists have debated how the Falkland Islands’ only land mammal journeyed to the region: by a long-ago land bridge or with people.
- Animals
Flamingos dye their sun-faded feathers to stay pretty in pink
During mating season, flamingos rub a makeup-like rouge on their necks to catch the eye of the opposite sex. They don’t bother once chicks are born.
- Animals
Jumping spiders’ remarkable senses capture a world beyond our perception
Clever experiments and new technology are taking scientists deep into the lives of jumping spiders, and opening a portal to their experience of the world.
- Animals
Tuskless elephants became common as an evolutionary response to poachers
After poachers tore through a Mozambican elephant population, tuskless females tripled in number as humans altered the species’s evolutionary trajectory.
