Claudio Contreras / Hernandez's helmeted basilisk (Corytophanes hernandezii) in rainforest tree, Los Tuxtlas Biosphere Reserve, Mexico, November

Claudio Contreras / Hernandez's helmeted basilisk (Corytophanes hernandezii) on rainforest leaf, Los Tuxtlas Biosphere Reserve, Mexico, November

Claudio Contreras / Hernandez's helmeted basilisk (Corytophanes hernandezii) on rainforest leaf, Los Tuxtlas Biosphere Reserve, Mexico, September

Claudio Contreras / Smooth-head helmeted basilisk (Corytophanes cristatus) portrait, Montes Azules Biosphere Reserve, Lacandon Rainforest, Mexico, August

Claudio Contreras / Smooth-head helmeted basilisk (Corytophanes cristatus) on tree trunk, Montes Azules Biosphere Reserve, Lacandon Rainforest, Mexico, August

Claudio Contreras / Smooth-head helmeted basilisk (Corytophanes cristatus) on leaf, Montes Azules Biosphere Reserve, Lacandon Rainforest, Mexico, August

Piotr Naskrecki / Helmeted Iguana (Corytophanes cristatus) portrait, Costa Rica

Piotr Naskrecki / Helmeted Iguana (Corytophanes cristatus) in rainforest habitat, Costa Rica

Doug Wechsler / Helmeted lizard {Corytophanes cristatus} Panama

Doug Wechsler / Helmeted lizard {Corytophanes cristatus} Panama

Gerry Ellis / Helmeted Iguana (Corytophanes cristatus) portrait, on branch, Mesoamerica

Mark Moffett / Casque-headed Lizard (Corytophanes hernandezii), Peru