The NY Times has an interesting story on African wild dogs. They are doing relatively okay conservation-wise experts think, but still endangered. It looks like the species displays true altruism, with non-reproductive adults in packs sacrificing their well-being to feed pups. http://www.nytimes.com/2014/08/12/science/one-for-all-and-all-for-hunt-.html?ref=science&_r=0
