As an anthropologist, I'm often confronted with questions of evidence for evolution. Rather than respond like David Attenborough would (" You are really blinkered if you haven't stubbed your toe against evolution by now"), although I'd like to, I'm putting together some classic examples. I find that the most convincing threads of reasoning are those that show intermediate forms of life, between two creatures that are well known.
Whale Evolution
Horse Evolution
There is some really fabulous research on the intermediate forms of horses.
In particular, look at the evolution of the horse foot.
