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Medinoc
(Before Recorded History)
TroperNo9001
(Wise, aged troper)

I just saw a glimpse of this show on Nick Jr. Asia but didn't get the title. It's a British Slice of Life cartoon where everyone is a colored anthro-ish blob, with the orange one kinda looking like Arthur. In the glimpse of the episode I just saw, the main characters turn into moles and dig around the world, but I don't know if it was an Imagine Spot or if they're shapeshifters.