Watch a playful howler monkey insist on attention and affection in a funny encounter.

If you lose your sight, you make up for it with other senses. If one arm is amputated, you learn to do twice as many things ...

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 ...

Dunn’s team analyzed the biological “budget” of these primates and found a direct negative correlation: males with large ...

When visiting Costa Rica, you're sure to many types of mischievous monkeys. Here is one traveler's monkey-seeking adventure.

What are some of the species we’re seeing in the illegal wildlife trade today? And what are we doing to combat it?

A new study revealed the presence of microplastics in the stomachs of howler monkeys living in a protected area of the Brazilian Amazon. This is the first evidence of plastic ingestion by a ...

Scientists have detected microplastics in the digestive systems of red howler monkeys living in protected areas in the Brazilian Amazon, marking the first evidence of plastic ingestion by a ...

Zoos often group the two species because of their similar habitats and dispositions Erik Bowker/Denver Zoo Conservation Alliance A capybara and a howler monkey have struck up an adorable friendship ...