Green and Black Poison Dart Frog

Hi. This was taken at the california academy of science

They could have taken the pictures in the wild. Some poison dart frogs have been introduced and multiplied in new, non-native, lands. I know that they populations of dart frogs in Hawaii but I do not know if there are any populations in California. I would like to know though, if it was in a zoo or in the wild?

Please, add some more infos about the location. I guess you took the pictures in a zoo.