In all three blocks, the cameras captured images of orangutans walking. This in itself was unusual, as it was previously thought the critically endangered animals kept to the canopy whenever possible. (Watch: “Kalimantan’s Orangutans.”)
But most interesting was the fact that the great apes appeared to show a preference for walking along roads built by the timber industry, according to the study, published in the January issue of Oryx.
This excerpt from a news article appeared in and is courtesy of National Geographic and can be read in its entirety here.