Puerto Rico began to produce cattle, sugar cane, coffee and tobacco, which led to the importation of slaves from Africa. As a result, Puerto Rican bloodlines and culture evolved through a mixing of the Spanish, African, and indigenous Taíno and Carib Indian races that shared the island. Today, many Puerto Rican towns retain their Taíno names, such as Utuado, Mayagüez and Caguas.