Parkour Research from University of Roehampton on Vimeo. 

Orangutans are big; much bigger than humans. Even with their size  they  through trees just like they were a lemur though. For a long time this confused scientists. That is until Parkour helped them find an answer.  

You can see the results in the BBC News report up top. According to the researchers, the orangutans' secret is to use the natural moment of the trees to keep their own energy costs down. Here the primates' extra mass is actually a benefit, allowing them to make their tree sway back and forth until it's close enough to the next tree to move on. It's not necessarily going to be the quickest way to move about, but it is energy-efficient, saving about 90% of the energy it would take to climb down one tree and up the next one.

To read the full story click here.