The Avocado: An Evolutionary Anachronism

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Health Editor’s Note: Personally I cannot stand the taste or texture of an avocado and would not care if they had never been here in the first place. Plus they can be pricey. I have been known to use the seed to grow a plant….Carol

Why the Avocado Should Have Gone the Way of the Dodo

by K. Annabelle Smith Smithsonian.com

The avocado is a fruit of a different time. The plant hit its evolutionary prime during the beginning of the Cenozoic era when megafauna, including mammoths, horses, gomphotheres and giant ground sloths (some of them weighing more than a UPS truck) roamed across North America, from Oregon to the panhandle of Florida. The fruit attracted these very large animals (megafauna by definition weigh at least 100 pounds) that would then eat it whole, travel far distances and defecate, leaving the seed to grow in a new place. That’s the goal of all botanical fruits, really. Survival and growth via seed dispersal.

But the great mammals disappeared forever about 13,000 years ago in the Western Hemisphere. Around that time, North America lost 68 percent of its diverse Pleistocene megafauna, and South America lost 80 percent, Connie Barlow, author of The Ghosts of Evolution: Nonsensical Fruit, Missing Partners, And Other Ecological Anachronisms says. But even after this major shift in the land mammal population, the wild avocado still requires the same method of seed dispersal, which makes it somewhat of an evolutionary anachronism.

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