Cuban crocodile hatching

Two Cuban crocodiles hatched at the National Zoo in July, the first in 24 years. Cuban crocodiles are critically endangered, making the babies very valuable. Because temperature during embryonic growth determines the sex of Cuban crocodiles and the existing population is primarily female, zoo keepers carefully incubated the eggs at just around 90 degrees in order to produce males. Learn more about the babies and see more images.

Photo by Barbara Watkins, Smithsonian’s National Zoo