The Smithsonian has news for market timers:

Americans devour 7 pounds of avocado per person each year, compared to 1 pound on average back in 1989. Per capita consumption of avocados has tripled since the early 2000s, according to the USDA. Yet nearly all of these avocados—some 95 percent in the U.S. and about 80 percent worldwide—are of a single variety: the ubiquitous Hass. That’s especially crazy because … the pebbly, black-skinned Hass didn’t even exist a century ago.

Also this, which makes me wince to consider:

…mammoths and giant ground sloths would gobble the fruit whole and then travel long distances, before pooping out the seed and thus dispersing the trees.