Regurgitation

Turkey vultures deter predators by projectile vomiting gastric juices as acidic as battery acid that burns their attacker's skin and eyes.

I know what you are thinking. Pigeons are just rats with wings, right? False.

A snowy owl has been spotted in Southern California -- a long way from its natural habitat in the Arctic tundra.

A new study by researchers at the University of Washington shows that losing a particular group of endangered animals—those that eat fruit and help disperse the seeds of trees and other plants—could severely disrupt seed-dispersal networks in the Atlantic Forest, a shrinking stretch of tropical forest and critical biodiversity hotspot on the coast of Brazil.

New research from the University of Massachusetts Amherst concerning "synanthropic" flies—or the non-biting flies that live with us—argues that we need to pay far more attention to them as disease carriers. While epidemiologists have focused their attention on the biting flies that can spread diseases by transferring infected blood from host to host, it turns out that what the non-biting flies regurgitate is a far…

A preserved specimen sheds light on how owls originally hunted during the Miocene Epoch.

The African rock python slowly devours its prey.

The yak is an imposing animal that lives in one of the most inhospitable regions on the planet: the Himalayas. How can it withstand the extreme cold? The post The yak is an imposing giant of the high mountains first appeared on EarthSky.

Best-selling novelist Amy Tan of "The Joy Luck Club" fame combines entries from her nature journal with astonishing illustrations thanks to lessons in bird illustration in "The Backyard Bird Chronicles," to share a birdwatching obsession that dates bac...

Is there actually a fish with human teeth? It may be uncanny, but there is good reason behind the toothy appearance of the sheepshead fish.

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Gastroesophageal reflux disease, or GERD, is often accompanied by a host of dietary restrictions. Here's what experts recommend for keeping reflux in check.

Burmese pythons are not just big snakes, growing to more than 18 feet and 200 pounds, but big eaters, taking on prey as large as deer.

WASHINGTON — Scientists have figured out why vampire bats are the only mammals that can survive on a diet of just blood. They compared the genome of common vampire bats to 26 other bat species and identified 13 genes that are missing or no longer work in vampire bats. Over

A drug that has helped millions of men reinvigorate their sex lives seems to treat a rare, but often deadly, eating disorder in dogs, researchers say.

Experiments where vampire bats were made to run on a treadmill have revealed how they extract energy from protein in their latest blood meal

Male hellbender salamanders normally tend their young, but lately they've been devouring them instead

The Gans' egg-eater, an African snake, can swallow eggs whole despite its small size.

Seabirds are one of the world's most threatened animal groups. They already contend with multiple issues, including climate change, accidental capture in fishing gear and being eaten by invasive species like cats and some rodents.

Orcas living off Europe's Iberian coast recently struck and sunk a yacht in the Strait of Gibraltar. Scientists suspect that this is the third vessel this subpopulation of killer whales has capsized since May 2020, when a female orca believed to be the originator of this behavior suffered a traumatic encounter with a boat.