1) Video of Hans Rosling’s talking about Epidemiology for the Bottom Billion – where there is not even a pump handle to remove! for the John Snow Society’s 2011 Annual Pumphandle Lecture.

2) Mathematical biologist Martin Nowak talks about the evolution of cooperation at Edge. Link goes to video and text.

3) Eyes on Leuser, a camera-trapping project monitoring wildlife in the Leuser ecosystem of northern Sumatra, Indonesia.  Watch footage of various rainforest animals from camera traps. (via DotEarth).