These crocs had a lot to smile about – sporting huge toothy grins as they posed with stunning models in incredible underwater snaps.
The brave models held their breath as they came face to face with the magnificent predators during the daring shoot.
Photographer Ken Kiefer took a two hour boat ride to reach the carnivorous crocs at Chinchorro Banks, Mexico, along with his wife and model, Kimber and model, Melodie Trevino.
The team used bate to entice the American crocodiles and ensured safety divers were on hand to intervene.
Ken, 49, said: “During the time with the crocodiles, we stay on a fishing shack, with no power or plumbing and only the necessities that we bring with us during the two hour boat ride.