Want to help save some lions in Kenya? Well, help these guys make some open source lion-tracking collars, complete with GPS and GSM on board.
Lions are not doing too well in Kenya, with only 2,000 or so left. Two groups called Lion Guardians and Living with Lions are dedicated to studying and saving the diminished lion population. In order to help them out, Justin Downs of Brooklyn's GRND Lab built them a solar-powered treehouse last year. Now, he's working on some of the aforementioned collars to help them track the lions.