Animals
- Animals
A risk-tolerant immune system may enable house sparrows’ wanderlust
Birds that are willing to eat seed spiked with chicken poop have higher expression levels of a gut immunity gene, a new study finds.
- Animals
A frog’s story of surviving a fungal pandemic offers hope for other species
Evolving immunity to the Bd fungus and a reintroduction project saved a California frog. The key to rescuing other species might be in the frog’s genes.
- Animals
Hundreds of snake species get a new origin story
Elapoid snakes, including cobras, mambas and sea snakes, may have evolved in Asia, not Africa as many researchers once thought.
- Animals
Why a small seabird dares to fly toward cyclones
Tracking data show that Desertas petrels often veer toward cyclones and follow in their wake, perhaps to catch prey drawn to the surface.
- Animals
Pheromone fingers may help poison frogs mate
Specialized glands in the fingertips of some males may produce seductive chemical signals.
- Animals
Static electricity may help butterflies and moths gather pollen on the fly
Electrostatically charged lepidopterans could draw pollen out of flowers without touching the blooms, computer simulations suggest.
- Health & Medicine
Getting drugs into the brain is hard. Maybe a parasite can do the job
Researchers want to harness the parasite that causes toxoplasmosis to ferry drugs, but some question if the risks can be eliminated.
- Animals
Komodo dragon teeth get their strength from an iron coat
Studying the reptile’s ironclad teeth in more detail could help solve a dinosaur dental mystery.
- Health & Medicine
Bird flu has been invading the brains of mammals. Here’s why
Although H5N1 and its relatives can cause mild disease in some animals, these viruses are more likely to infect brain tissue than other types of flu.
- Genetics
Freeze-drying turned a woolly mammoth’s DNA into 3-D ‘chromoglass’
A new technique for probing the 3-D structure of ancient DNA may help scientists learn how extinct animals functioned, not just what they looked like.
- Animals
Tiny saunas help frogs fight off chytrid fungus
Balmy shelters could bolster resistance to the deadly fungus in amphibian populations, but experts caution they won’t work for all susceptible species.
- Health & Medicine
Bird flu viruses may infect mammary glands more commonly than thought
H5N1 turning up in cow milk was a big hint. The virus circulating in U.S. cows can infect the mammary glands of mice and ferrets, too.
