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A look at how dogs know when someone is sick; why octopuses have blue blood; which animal makes the most amazing nest; exploring whether elephants really never forget; how cicadas make so much noise.
A look at how hamsters stuff so much into their cheeks; why camels have humps; exploring whether alligators have a secret supersense; why pigeon wings are so noisy.
In this episode we ask: how do kangaroo moms churn out so many joeys? Why don't spiders get stuck in their own webs? How do foxes find water in the desert? And what's the secret to the chameleon's perfect strike rate?