What Ancient DNA Says About Puerto Rico’s History

The people of pre-colonial Puerto Rico did not disappear entirely—a new study shows that the island’s residents still carry bits of their DNA.

In the 15th century, when Europeans first reached the island now named Puerto Rico, it was home to between 30,000 and 70,000 people, sometimes known collectively as Taíno. They came from various ethnic groups descended from several waves of ancestors who came to the island in succession, beginning as early as 3,000 b.c. But a century after the colonizers arrived, official traces of these indigenous peoples were all but impossible to find.