Why dog breeds look so very different, but cats don't By Mindy Weisberger last updated 22 September 22 Why don't pedigreed cats show the extremes in body size and shape that dog breeds do?
Why do dogs have cold noses? By Dani Leviss last updated 22 September 22 It's possible that a pup's cold, wet nose acts as an infrared sensor.
Why are small dogs so fierce? By Tyler Santora last updated 22 September 22 There are a few possibilities for why small dogs can be so menacing.
Dogs know where their paws end and the world begins By Yasemin Saplakoglu last updated 22 September 22 Dogs may have self-awareness just like humans.
Dog vision: How do dogs see the world? By Natalie Wolchover last updated 22 September 22 Reference Dogs can only distinguish between blue and yellow hues. Here's how red and green tomatoes look to them.
Dogs will never speak human. Here's why. By Rachael Rettner last updated 22 September 22 The findings mean that dogs may be similar to human infants in their word processing abilities.
The Incredible Explosion of Dog Breeds By Remy Melina last updated 22 September 22 From a teacup-size Chihuahua to a Great Dane, there is an incredible amount of variety in dog breeds.
Are Dogs Really Smiling at Us? By Emma Bryce last updated 22 September 22 Is this expression really a smile?
Why do dogs and cats run around in random bursts of speed? By Tyler Santora last updated 22 September 22 What prompts this lightning-like energy in pets?
Lizards: From tiny geckos to giant Komodo dragons By Patrick Pester published 21 September 22 Lizards are a diverse group of reptiles made up of thousands of species around the world, including giant Komodo dragons and chameleons the size of your fingertip.
Crystal-stuffed dinosaur eggs the size of cannonballs discovered in China By Ben Turner published 21 September 22 East China’s volcanic terrain is ideal for fossil hunters, who discovered the unusual eggs
Mysterious 'blue goo' at the bottom of the sea stumps scientists By Harry Baker published 20 September 22 Researchers exploring the deep sea in the Caribbean have come across a mysterious "blue goo" that they can't identify.
How long do new species take to evolve? By Michael Dhar published 17 September 22 Organisms that reproduce quickly can quickly evolve into new species, while geographic barriers can lead to new species formation over tens of millions of years.
Which animals could go extinct by 2050? By Joe Phelan published 19 September 22 With climate change, habitat loss, overhunting and more, which animals are at risk of extinction by 2050?
Why Do Cats Wiggle Their Butts Before They Pounce? By Serena Sonoma last updated 15 September 22 As many pet owners will attest, when their cat prepares to pounce, it does a little butt wiggle first.
Why do so many cats have white 'socks' on their paws? By Grant Currin last updated 15 September 22 Those white socks are there because of genetic mutations and domestication.
Why do cats lick? By Charles Q. Choi last updated 15 September 22 Here's the science behind why cats lick themselves, as well as other animals and even humans.
Tigers: The world's largest cats By Patrick Pester last updated 15 September 22 Tigers are the biggest cats in the world, but their populations are struggling. With only 3,200 left in the wild, there are now more living in captivity than in the wild.
How do cats get their stripes? By Nicoletta Lanese last updated 15 September 22 Several key genes dictate whether a house cat will have stripes, spots or neither.
