Your morning coffee may be more than a half million years old

Arabica coffee beans harvested the previous year are stored at a coffee plantation in Ciudad Vieja, Guatemala, on May 22, 2014. In a study published in the journal Nature Genetics on Monday, April 15, 2024, researchers estimate that Coffea arabica came to be from natural crossbreeding of two other coffee species over 600,000 years ago. — Photo: AP Photo/Moises Castillo, File

That coffee you slurped this morning? It’s 600,000 years old.

Using genes from coffee plants around the world, researchers built a family tree for the world's most popular type of coffee, known to scientists as Coffea arabica and to coffee lovers simply as "arabica.”