Animals
- Animals
A koala population’s rapid rebound may let it escape inbreeding’s perils
As koalas in southern Australia have grown from a few hundred to almost half a million, the marsupials show signs of regaining lost genetic variation.
- Animals
Cockroaches that eat each other’s wings turn into a fierce fighting force
The wood-feeding cockroach’s cannibalistic love bites lead to a lasting bond. Afterward, the pair prefer each other over all other roaches.
- Animals
Here’s how honeyeaters and other birds thrive on sugary diets
Birds that feed on nectar or fruit evolved better mechanisms for managing metabolism, blood pressure and high glucose.
- Animals
Climate change could threaten monarch mass migration
Suitable milkweed habitat in Mexico may shift south, fracturing existing migration routes and possibly pushing some butterflies to stay put.
- Animals
Keeping a beat wins caterpillars friends in low places
Finding a caterpillar with rhythm was “mind-blowing,” suggesting it might be a more widespread part of animal communication than thought.
- Life
An African monkey ate a rope squirrel and came down with mpox
Fecal analyses and necropsies suggest a fire-footed rope squirrel was the source of a 2023 mpox outbreak among sooty mangabeys in Côte d’Ivoire.
- Animals
Intricate silk helps net-casting spiders ensnare prey in webs
Rufous net-casting spiders can tune the stiffness and elasticity of their webs thanks to loops of silk, scanning electron microscope images reveal.
- Health & Medicine
This itch-triggering protein also sends signals to stop scratching
The TRPV4 protein’s dual nature, found in studies with mice, may complicate the hunt for human itch treatments
- Paleontology
A mouth built for efficiency may have helped the earliest bird fly
A flexible tongue, sensitive beak and teethlike cones in the mouth may have helped Archaeopteryx generate enough energy to fly.
- Animals
Some dog breeds carry a higher risk of breathing problems
Research reveals more short-snouted dogs besides pugs and bulldogs that struggle with breathing. Pekingese and Japanese Chins topped the study's list.
- Animals
Regeneration of fins and limbs relies on a shared cellular playbook
The findings strengthen the case that regeneration is an old trait, offering insights into how complex tissues rebuild themselves.
- Animals
How tracking golden eagles in Nevada revealed a desert ‘death vortex’
Something is stopping Dry Lake Valley’s golden eagles from reproducing and killing raptors that fly in to fill the void.
