Eyes are such a normal part of our everyday life that we rarely stop to think about how much they shape the way we live. They help us read, work, travel, connect with people, and understand everything ...

The Goliath birdeater ( Theraphosa blondi) is the world’s largest spider, with a leg span up to 30 cm (12 in). Its hairy, ...

The natural world is full of wonders that often seem to defy belief. Some creatures are so extraordinary, they look as if they’ve leaped right out of ancient myths and legends. From bizarre deep-sea ...

DEAR PET TALK: We have an orange striped cat. Sometimes her eyes have a greenish tint; other times, they are a deep butterscotch, which matches her fur. Why do cats’ eyes look different? — Cat Lover ...

Animals with human eyes, elephants with dog snouts, and beavers with fish tails–were medieval artists simply bad at painting? Not at all. There’s more to these quirky creatures than meets the eye.