A bright red mass suddenly appears in a dog's eye. Is it painful? How did it develop? Here is all you need to know about cherry eye in dogs.

Some birds are hard to find due to migration patterns, climate preferences, or breeding schedules, but you could spot a rare ...

From a cat that accidentally made an 8,000-mile journey in a shipping container to a tunnel made just for turtles, all kinds ...

A discreetly placed trail camera by the river recorded this natural moment without any humans around. This scene offers a ...

Great apes are humans' closest relatives in the animal kingdom. As much as 98.8% of their DNA is shared, but while the number ...

As habitat loss and invasive predators decimate the Texas horned lizard population, researchers are banking on statewide ...

When related animals produce offspring, the young can be affected by physical abnormalities and health problems. We explain why.

This is true when the dog belongs to a breed so rare that most people will never see one in person, if they even know the dog exists. When you pair that type of rarity with a stunning landscape that ...

Eight African penguins hatched at the Maryland Zoo during the recent breeding season, adding to the population of the critically endangered animal, officials said.

WorldAnimalFoundation.org is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn More Some cats are so unique and elusive that they feel like something ...

The homeowners in East Stroudsburg, Penn., say the unusual creature has visited their house several times Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013. Her work ...