Gordon Buchanan goes to meet the world's cutest animals to reveal their hidden biology, and find out why people have such a strong emotional response to them.

That means something! And like many animals, they really are the cutest when they're babies... even if they don't have very ...

We can’t resist those cute river otters ... North American river otters are extremely active and playful animals that can be found in freshwater habitats throughout the U.S. and Canada.

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