It should be known that not every animal has eyes. Most animal species (especially invertebrates like nematodes, annelids, flatworms, sponges, etc.) do not have eyes. Estimates suggest only about ...

Picture a pair of eyes the size of soccer balls peering out at you from the dark depths of the ocean. For the colossal squid, ...

One of the most common adaptations seen in the animal kingdom is vision. Nearly 96% of all animals have some kind of eyes and they've proven so evolutionary advantageous that they've evolved multiple ...

Most animals use their eyes to see. Eyes help them find food, avoid danger, and move around. But some animals live in places where there is no light. These include underground water, caves, and deep ...

The rainbow mantis shrimp may look like an alien, but they have sophisticated vision unlike any other animal, including ...

Grab your glasses for this one, because we’re talking animal eyes. Eyesight is one of the most important adaptations animals rely on for survival. As humans, we know how much we depend on our eyesight ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...

Animals with blue eyes are a rare occurrence in nature due to being linked to recessive genetics, mutations, and specific genes. Despite that, many species still have beautifully rich blue eyes. While ...

Carmona isopods with enormous eyes are rediscovered in a forgotten Roman mine beneath a Spanish city, hidden for more than ...

Every other Friday, the Outside/In team answers a listener question about the natural world. This week's question comes from Liz in Pittsburgh, Pennsylvania. Alex Funk: Albino animals in nature are ...