Our readers contend that the heart really is quite central after all, and the asymmetry it does have helps to make it a more ...

Most U.S. adults have a "heart age" several years older than their chronological age—sometimes by more than a decade. And that gap is wider among men and among those with lower incomes or education or ...

Nicole Ellis, a certified professional dog trainer, shared her top air travel tips for those flying with dogs.

That is what occurred when a tiny kitten named Tinkie became an unexpected source of comfort for a woman in her final hours, ...

Over billions of years, the drive to survive, reproduce, and outcompete rivals has pushed plants and animals to incredible ...

Researchers from the University of Manchester, Baylor College of Medicine, and other international institutions have found a ...

"She has found herself a foster 'mom' that just wants to love her with licks," said one comment on the video with over 6 million views.

Estrogen increases the levels of the protein annexin-A1 in female mice, suggesting a protective effect against hypertension, according to recent research.

Nine horses softly chew on grass and hay, soaking up the mid-morning light at Grace Reins Ranch in Placerville, Colo. Underneath their serenity, these horses hold trauma, like many of ...

While anti-animal testing groups condemn "deadly" dog and cat studies as morally wrong, the NIH defended certain experiments ...

In a world where heart disease continues to rank as the top cause of death, scientists are urgently searching for ways to ...

Your love for animals and your taste for meat may be at odds—and your brain has a secret way of making that feel okay.