Watch Zoo Revolution, Thursday at 9pm/9:30 NT on Doc Zone

Are zoos the problem or the solution? Zoo Revolution traverses the globe, presenting both sides of the zoo debate.

Watch Carpe Diem: A Fishy Tale, Thursday at 8pm/8:30 NT on The Nature of Things

They out-eat other fish and tilt the food chain in their favour — can we prevent Asian carp from infesting the Great Lakes?

Tonight on CBC

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