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How the Vagus Nerve Regulates Digestion

The vagus nerve’s right branch plays a key role in digestive signaling.

Olympic Animals Take the Gold

It's a good thing we don't have to compete against animals for strength, speed, swimming and other Olympic events.

Life Exceeds Expectations: Invertebrates

Here are examples of terrestrial invertebrates that exceed the requirements for survival.

Is Animal Play Just an Evolutionary Survival Mechanism?

Your dog enjoys play, and so do birds, dolphins and many other kinds of animals, but how did "having fun" evolve?
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