Some animals see the world in shades of grey, while others perceive limited colours. Here are 10 animals that are colourblind or have restricted colour vision.

Studies conducted in the last 20 years suggest that the bison population at Yellowstone National Park includes two separate ...

It’s well known that dogs don’t see as many colors as we do – similar to color blindness in people. Whereas humans have three types of cones in our eyes, allowing us to identify combinations of red, ...

Yellowstone Animals What makes Yellowstone so special is they have been able to bring back the top predator in the food chain, the Yellowstone Wolves. Since the wolves were reintroduced the park ...

When offered a choice of bowls, free-ranging dogs in India tend to approach a yellow one much more than blue or grey ...

Generally shy and elusive, the yellow-billed cuckoo can be easily overlooked. Its calls are usually loud and often provide the best evidence to the presence of the bird. It favors eating ...