Heartworm disease is caused by the parasite Dirofilaria immitis. It is spread to dogs by mosquitoes and can be fatal. Adult ...

Research led by the University of Sydney is reshaping scientific understanding of one of the world's most widespread canine ...

Learn how heartworm disease became widespread in dogs, reflecting an evolutionary history that spans back to ancient times.

Dog owners are often advised to prevent heartworm infections with drugs called parasiticides, but their widespread use has ...

When most people picture ancient dogs, they imagine something wolf-like—sleek, long-snouted, and built for the hunt. But a major new archaeological study reveals a very different story. Thousands of ...

Modern dogs, classified as Canis lupus familiaris, share a common ancestor with the gray wolf. Genetic studies have shown ...

You’ve heard of tales as old as time—now meet the tails as old as time! The oldest dog breeds in the world have been around for thousands of years, serving as hunters, guardians, and companions long ...

It might sometimes feel hard to believe when you're looking at a Chihuahua in a cushy dog bed or a golden retriever in a yellow raincoat and boots, but domestic dogs - yes, all domestic dogs - are the ...