I noticed this green gecko of unknown species on one of the walls in the tropenhalle, sadly I was not able to get a photo of the back because of the angle. But this should be either Koch's day gecko (Phelsuma kochi) or Greater Madagascar day gecko
(Phelsuma grandis).
A Madagascar Giant Day Gecko was walking on a phone in a Hawaiian Monk Seal hospital and made many calls to everyone on the recent history, and possibly helped people save 15% or more on car insurance...