Curious George

Curious George Discovers the 'Poles (1x19)

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George has gone to his favorite country place, Lake Wanasinklake, where he finds Bill fishing in the lagoon. Bill has caught not fish, but tadpoles and he asks George to look after them as they grow up because "they do some amazing things". But when George figures they are growing tired of the same, small fishbowl, he decides to release them into the lagoon. Later he tries to do anything to get them back but only catches a small green creature which is not one of his tadpoles. Or is it?...