An endangered western female hoolock gibbon seen within her enclosure in Assam, India. Populations of the western hoolock gibbons have declined by almost 90% over the last 30 years, and it is now considered to be one of the most endangered 25 primate speies in the world. Picture: BARCROFT MEDIA
Hamadryas baboons at the Emmen Zoo in Emmen, Netherlands, have been behaving strangely. They have not been eating and are sitting close together in a small periferic area of their island. A few years back the same group of baboons showed similar unexplicable behavior of mass apathy. Picture: Vincent Jannink/AFP/Getty Images
Disclaimer: All the pictures featured on this page belong to their respective owners. If you see your picture featured and don't want it to be, email us with the link and we will take it down right away.