TO GO WITH AFP STORY BY KATELL ABIVEN & RIGOBERTO DIAZ
An adult Cuban crocodile (Crocodylus rhombifer) is seen at the breeding center of Cienaga de Zapata, Cuba, on june 14, 2021. - Considered critically endangered, the Cuban crocodile sees the purity of its race threatened by the fieryness of its American cousin. Faced with this reality, scientists wonder if they shouldn't just let Mother Nature decide. (Photo by ADALBERTO ROQUE / AFP)