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Did you know our brains have some deep similarities with many other animals?

Go inside a human brain and fish brain with host Neil Shubin in this clip from YOUR INNER FISH, and see what we share with these sea-dwelling creatures.

The new series begins Wednesday, 4/9 at 10/9c on PBS’ THINK WEDNESDAY.

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Meet Ardi, a 4.4 million-year-old fossil that sheds light on our transition to walking on two legs. Host Neil Shubin joins Tim White and Owen Lovejoy to understand our transition to bipedalism.

YOUR INNER FISH continues Wednesday, April 16 & 23 at 10/9c on PBS.

Check out this 3D model of Ichthyostega, created using the latest scanning techniques.

Ichthyostega’s forelimbs could push the top half of its body off the ground. Its back end has paddle-like hind limbs that are useful for swimming, but can also act as stabilizers on land to keep it from falling over.

Learn more on PBS, April 9th at 10/9c, with the premiere of YOUR INNER FISH.

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Travel to the Bay of Fundy in Nova Scotia, Canada to meet an animal in the midst of the reptile-to-mammal transition in this YOUR INNER FISH clip.

Don’t miss this new three-part series starting Wednesday, 4/9 at 10/9c on PBS’ THINK WEDNESDAY.

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From their eyes to their fingernails and even the way they grab things, Neil Shubin discusses the deep connection he can see between humans and squirrel monkeys in this clip from the new three-part series Your Inner Fish.

Your Inner Fish premieres 4/9 at 10/9c on PBS’ THINK WEDNESDAY.