MYN / Paul Marcellini / Sequence of an American alligator (Alligator mississippiensis) hatching from its egg, Palmdale, Florida, USA. Digital composite.

Ingo Arndt / American Alligator (Alligator mississippiensis) split level, Everglades, USA, January.

Ingo Arndt / American alligator (Alligator mississippiensis) split level, Everglades, USA, January.

George Sanker / Alligator (Alligator mississippienis) at the surface, with clouds reflected on the water, Everglades, Florida, USA, March.

Mark MacEwen / American Alligator (Alligator mississippiensis) close up of scutes / scales, Florida Everglades, Florida, USA.

Pete Oxford / American alligator (Alligator mississippiensis) half submerged, Okefenokee National Wildlife Refuge, Florida, USA

Doug Perrine / Snout of approaching American alligator (Alligator mississippiensis) Big Cypress National Preserve, Florida Everglades, USA

Doug Perrine / American alligator (Alligator mississippiensis) with mouth open, split level, Big Cypress National Preserve, Florida Everglades, USA

Doug Perrine / American alligator (Alligator mississippiensis) mouth closed but teeth showing, split level, Big Cypress National Preserve, Florida Everglades, USA

Doug Perrine / American alligator (Alligator mississippiensis) with mouth open, split level, Big Cypress National Preserve, Florida Everglades, USA

Rolf Nussbaumer / American alligator {Alligator mississippiensis} floating at water surface, Welder Wildlife Refuge, Sinton, Texas, USA.

Doug Perrine / American alligator {Alligator mississippiensis} Florida, USA.

Rolf Nussbaumer / American alligator submerged {Alligator mississipiensis} Sanibel Is, Florida, USA.

John Cancalosi / American alligator {Alligator mississippiensis} leucistic, captive, USA

Lynn M Stone / Shoes, belts and purses made from American alligator skin / leather, Florida, USA

Peter Scoones / American alligator underwater (alligator mississippiensis) Florida

Peter Scoones / American alligator underwater, Silver Springs, Florida, USA. Captive animal.

Peter Scoones / American alligator underwater (alligator mississippiensis) Silver Springs, Florida, USA captive

Peter Scoones / American alligator underwater. Florida, USA

Peter Scoones / American alligator underwater. Silver Springs, Florida, USA

Niall Benvie / American alligator (A. mississippiensis) teeth. C. PY, USA. Pennsylvania

Lynn M Stone / American alligator at water surface, Florida, USA (Alligator mississippiensis) captive

Lynn M Stone / American alligator portrait, Florida, USA

David Kjaer / American Alligator female carrying baby on head. Texas, USA

Ingo Arndt / American Alligator (Alligator mississippiensis) in water, Everglades National Park, Florida

Scott Leslie / American Alligator (Alligator mississippiensis) juvenile, Florida

Tim Fitzharris / American Alligator (Alligator mississippiensis), Everglades, Florida

Heidi & Hans-Juergen Koch / American Alligator (Alligator mississippiensis) three large adults laying in shallow water, Florida

Tim Fitzharris / American Alligator (Alligator mississippiensis), North America

Jim Brandenburg / American Alligator (Alligator mississippiensis) floating at water surface, Everglades National Park, Florida

George Sanker / American alligator (Alligator mississippiensis) submerged in river. Everglades National Park, Florida, USA. March.

Chris Mattison / Alligator (Alligator mississippiensis) in swamp vegetation, Corkscrew Swamp, Florida, USA

Steven David Miller / American Alligator (Alligator mississippiensis) basking, Corkscrew Swamp Sanctuary, Southwest Florida, USA. February.

Lynn M. Stone / American alligator (Alligator mississippiensis) in Upper Myakka Lake at sunrise. Sarasota, Florida, USA. June.

John Cancalosi / American aligator (Alligator mississippiensis), close up of skin, Louisiana, USA. November.

George Sanker / American alligator (Alligator mississippiensis) resting on log at water's edge. Hillsborough River, Florida, USA. March 2019.

George Sanker / American alligator (Alligator mississippiensis) resting on log at water's edge, forest behind. Hillsborough River, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis) portrait, mouth open. Everglades National Park, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis) portrait. Everglades National Park, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis), mouth wide open. Everglades National Park, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis), pod of juveniles resting on top of each other. Everglades National Park, Florida, USA, March.

George Sanker / American alligator (Alligator mississippiensis) walking along water's edge in evening light. Myakka River State Park, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis) emerging from water, in evening light. Myakka River State Park, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis) emerging from water. Myakka River State Park, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis) with mouth open. Myakka River State Park, Florida, USA. March.

George Sanker / American alligator (Alligator mississippiensis) juvenile resting on mother's back. Everglades National Park, Florida. March.

George Sanker / American alligator (Alligator mississippiensis) with mouth open, in swamp. Everglades National Park, Florida, USA. March.

Barry Mansell / American alligator (Alligator mississippiensis) in duck weed filled pond, Everglades National Park, South Florida, USA, August.