A new study reveals how a remarkable group of plants on the Galápagos Islands developed their diverse leaf shapes—offering ...

From butterflies to peacocks, bold circular "eyespots" are among nature's most eye-catching patterns. But why do they appear ...

Black jaguars, like the cub on the left, have a mutation that causes them to produce more of the pigment melanin than spotted jaguars do. Daniel Karmann / dpa / Corbis Shortly after he completed his ...