Apes and monkeys possess special anatomical structures in their throats called vocal membranes, which disappeared from humans through evolution to allow for more stable speech. However ...

Scientists Sakumi Iki and Ikuma Adachi recently spent a lot of time watching monkeys scratch themselves. Self-scratching among non-human primates is known to indicate social tension and anxiety.

She clarified in the comments that she used stuffing from another plush item to fill the sock monkey, which ended up as a small black and gray creation with white buttons for eyes. The video has ...