There are always exceptions to the rule, but some tried-and-true methods have proven to be accurate in determining the size a ...

From chihuahuas to great Danes, dogs differ more in size than any other mammal species on the planet. A mutation behind such variation has been traced to an unexpected source: ancient wolves 1. The ...

New research finds a mutation that suggests the more diminutive canines’ DNA dates back to ancient wolves. By James Gorman Big dogs get all the glory. I don’t have a peer-reviewed paper to prove it, ...

You don't find people the size of insects or giraffes; humans are all roughly the same size. The same is true of most species. There isn't a huge difference between the biggest and the smallest.

While the Newfoundland dog may not be the biggest breed around, there’s no denying that these gentle giants are just that: giant! Often called a Newfie, the Newfoundland is a large, powerful breed ...

Smaller dogs may live twice as long life as their larger counterparts. But does this size difference also impact how dogs age in terms of behavior and cognitive abilities? Based on the data of 15,000 ...

Smaller dogs can live up to twice as long as their larger counterparts, research from Eötvös Loránd University in Hungary shows. And yet, this longevity is accompanied by an increased rate of canine ...

The chart was developed by experts at the Ohio State University Veterinary Medical Center and aims to help owners delve into their pets' quality of life before making the gut-wrenching decision. The ...