I took this picture of a monkey in the road when I was on a local bus in Sri Lanka a few years ago... I started using it as an avatar on my profile for chess.com and quite liked it - since the monkey looked like it was thinking! I recently thought it would be a good replacement for the cat logo for all the reasons mentioned in the previous post - and - because it looks like it it thinking which is great for a website devoted to games about solving problems or challenges. Here