The Florida Keys are unique because they are one of the few places in the world where you can find both alligators and American crocodiles living in the same environment. While many people associate the Keys strictly with saltwater, alligators are frequently found in the "Lower Keys" (such as Big Pine Key and Little Torch Key) where there are enough freshwater "blue holes" and brackish ponds to support them. They are often seen in residential canals or near the National Key Deer Refuge. On the other hand, the American crocodile—a once-endangered species that has made a remarkable recovery—prefers the brackish and saltwater habitats found throughout the Upper and Middle Keys, particularly in the mangrove swamps and secluded coves. Crocodiles are distinct from alligators by their lighter, grayish-green color and their narrower, V-shaped snouts. In 2026, with the recovery of the crocodile population to over 2,000 adults, sightings have become more common in areas like Key Largo and Islamorada. While both species are naturally shy and generally avoid human contact, residents and visitors are advised to remain "GatorWise" and "CrocWise" by not feeding them and keeping pets away from the water's edge at dawn and dusk.