Thomas Marent / Gharial (Gavialis gangeticus), National Chambal Sanctuary, India

Kevin Schafer / Indian gharial (Gavialis gangeticus) Chambal National Sanctuary, Madhya Pradesh, India, Critically Endangered

Bernard Castelein / Indian gharial {Gavialis gangeticus} at waters edge with mouth open, Chamball river, Madhya Pradesh, India

Bernard Castelein / Indian gharial {Gavialis gangeticus} Chamball river, Madhya Pradesh, India

Anup Shah / Face on shot of Indian gharial {Gavialis gangeticus} with mouth wide open and dragonfly sitting on snout, India. Endangered species

Michael & Patricia Fogden / Gharial (Gavialis gangeticus) portrait, India

Anup Shah / Head on view of male Indian gharial {Gavialis gangeticus} India, Endangered species

Anup Shah / Indian gharial {Gavialis gangeticus} head and mouth profile, reflected in water, India. Endangered species.

Anup Shah / Male Indian gharial {Gavialis gangeticus} with head above water and mouth open, India. Endangered species. The appendage or ghara on snout is to amplify mating call.

Anup Shah / Male Indian gharial {Gavialis gangeticus} with mouth wide open in water, India, Endangered species. Ghara - appendage on end of nose helps amplify mating call.

Eric Baccega / False gharial (Tomistoma schlegelii) resting on rock. Mpassa river, Bateke Plateau National Park, Gabon.

Eric Baccega / False gharial (Tomistoma schlegelii) resting on rock in Mpassa river. Bateke Plateau National Park, Gabon.