The Science Highlight of 2015

Chris and Helen, what was your scientific highlight of 2015? Tim: evolutionary biology is sometimes a subject that gets attacked by people who don't think it's true. But really, we've got to be pragmatic about things and consider that it is the best tool that we've got. The predictions that science comes up with tend to work. And also, I think we have to extract our biases, which are caused by the way we experience the world.