Known for their enormous eyes and extraordinary leaping skills, tarsiers are among the smallest primates on Earth and one of the most fascinating members of the animal kingdom. As detailed in the ...

Howler monkeys are relatively small primates known for their incredibly loud, low-frequency roars that sound as if they come from a much larger creature. This is useful in the animal kingdom because ...

Primates - the group of animals that includes monkeys, apes and humans - first evolved in cold, seasonal climates around 66 million years ago, not in the warm tropical forests scientists previously ...