Dogs with an enlarged esophagus benefitted from liquid sildenafil in a small new study.
The superlative size of Dearc sgiathanach is shifting scientists’ understanding of pterosaur evolution.
The unexpected observation suggests magpies may engage in altruistic behaviors, a trait not often seen in birds.
Untrained orangutans seemed to instinctively use a stone hammer and cutting implement, surprising researchers.
Western Europe was a spinosaur "hotspot" during the Cretaceous Period, fossil evidence suggests.
This deep ocean fish is hardly ever seen by humans, and babies are even more elusive.
The event is just the latest in a pattern of bird falls in recent years.
For the first time, scientists say they can genetically alter ticks, which should allow us to better understand these disease-spreading pests.
Photographers from around the world submitted these breathtaking images of wildlife in pairs as part of the Close-up Photographer of the Year Challenge.
Researchers witnessed chimps applying insects to wounds dozens of times over a 15-month span.
Experts suspect a coronavirus, but not the one that causes covid-19, may be to blame for the outbreak of canine vomiting and diarrhea.
The Utah Bureau of Land Management claims no damage has been done, but several paleontologists said that dinosaur trackways may have been destroyed.
Rehydrating insect leftovers could be an easy way to get more out of a meal.
The orcas, mostly females, attacked the blue whales in coordinated attacks and feasted upon their gigantic tongues.
The last sighting of a leafhopper in this genus was more than 50 years ago.
Hairless French bulldogs are an example of the "extreme breeding" that is harming the long-term welfare of many pets, they warn.
The breakthrough offers hope that similar interventions could one day work in humans.
Three new papers describe Notiomastodon, an elephant relative that's long been in the shadow of its more famous cousin, the woolly mammoth.
Cases of rabbit hemorrhagic disease virus have been reported in at least 18 states since 2020, affecting wild and pet rabbits.
A camera strapped to the back of a Gentoo penguin demonstrates the predatorial proficiency of these semi-aquatic birds.
