Their powerful arms are stronger and longer than their legs, and their hands can touch their ankles when they stand. There are two different types of adult male orang-utan: flanged and unflanged.

The rare and mysterious orangutan crab was filmed swimming just ... strange sight as it kicks off from the sea bed and waves its legs to propel it through the water. The video was shot by Atsushi ...

Orang-utans take longer strides, moving their arms and legs a greater distance during each climbing step, and rotate their major joints over a greater range of motion. The word orang-utan (also ...