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Rats help save humans.

4 The Love Of Animals

Long before CAT scans, X-rays, blood samples and colonoscopies, physicians used the good sense they were born with: their sense of smell. A foul-smelling wound might spell an infection. That’s because bacterias, cancers and infections create unique smells. Sweet, fruity breath could mean diabetes. Liver disease? Fishy-smelling breath.

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Evolution of the Multi-Media Bird

10,000 Birds

That for the latter nature went on without them, letting them observe, seems to be proved by the fact that there doesn’t seem to be a big difference in your chance of getting wounded by a small to medium forest mammal if you are hunting them or if you are gathering plant products. Or get your own.

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