To say these fish are flexible is an understatement, they contort their bodies into all kinds of shapes , in this video we see a fish coming out of a u shaped pipe , he was looking for food I suspect .

They are shaped in such a way so they can manoeuvre there way into very tight spots while hunting and just to avoid predators and even lay eggs.

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Body shape is important for all fish and with the blackfish the fins allow for traction in all kinds of places.

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