Ologies with Alie Ward cover image

Smologies #20: FISHES with Chris Thacker

Ologies with Alie Ward

00:00

What Is an Axolotl?

An axolotl is a type of salamander and it's lungs. Fishes have swim bladders, which fill with gas and floats them up and down. Freshwater fishes live in a situation where they've got too much salt relative to the freshwater around them. Saltwater fishes have less salt than the water around them so they just have to be careful with their kidneys.

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