Ancient giant orangutans evolved smaller bodies surprisingly slowly
Wednesday 15th December 2021Ancient giant orangutans evolved smaller bodies surprisingly slowly
![Sumatran orang-utan](https://cfz.org.uk/wp-content/webpc-passthru.php?src=https://cfz.org.uk/wp-content/uploads/2021/12/111721_bb_orangutan_feat-1030x580-1-1024x577.jpg&nocache=1)
Sumatran orang-utan
Giant orangutans that once dwelled in mainland Southeast Asian forests belonged to a single species that gradually shrank in size over nearly 2 million years, a study suggests.