"This older sister-younger brother dynamic spans across all species I'm afraid," one user said in the comments.

Amateur astrophotographer Emil Andronic has captured a striking image of the Cat's Eye Nebula from his home in Hertfordshire, ...

Kessler first lost her beloved black cat, Voodoo, when she was 18. Her mom had gone to a shelter and asked which cat had been there the longest. The staff pointed her to "a grumpy black cat with a ...

"He was so focused on his eyes and seemed to know something needed extra attention," Alexandra Garland told Newsweek.

Meet the cat who has become a small-town celebrity - and takes trips with his owners to supermarkets and nearby cities.

Black cats have been dodging bad press for centuries, thanks to a mix of old myths, historical mishaps, and modern-day biases ...

Test your observation skills with a spot-the-difference puzzle featuring a cat stealing a fish. The challenge involves ...

Darren Aronofsky's swaggering new film looks like a rollicking time.

READ MORE: PICTURES: Cuckoo Fair's 'successful' return as thousands enjoy sunny day in Downton Cat Watch preaches the phrase "adopt ... He wasn't able to open his eyes due to entropion until Marnie's ...

Pictures online showed the cat with its guts hanging out ... The cat's organs had spilt out, and its eyes appeared to have been gouged out. They suspect that someone tortured the cat to death ...

Optical illusion pictures deceive our visual system into ... that optical illusions can help us understand how our brains and eyes perceive the world around us. One such optical illusion is ...

Wild cats showcase a stunning diversity of eye colors, proving a mystery for researchers because most wild species are known to have narrow eye color schemes (usually black, brown or yellow).