The Amazon Rainforest is home to some of the most exotic and beautiful animal life on the planet. Recently, scientists have discovered another rainforest resident deep within Brazil’s palm-dense Juruá ...

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 ...

Thirteen million years ago, a group of medium-sized monkeys known for guarding their territory among the treetops with fearsome "howls" started doing something new. These monkeys, among the oldest ...

An extinct relative of the howler monkey may have been the first leaf-eating primate in South and Central America ...