The "normal" ones are brown and if you give them a fright, their tails fall off. These grow to about 12cms.
This is the first time I had a "Madagascan Day Gecko" lurking around. Made sure all my windows were closed. It's beautifully bright, but I'd prefer it not to be in my house. This chap was about 28cms!
Entering this into the Our Beautiful World Challenge : Bright.