Claudio Contreras / Green iguana (Iguana iguana) bowing, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / Green iguana (Iguana iguana) yawning, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / Green iguana (Iguana iguana) basking in sun, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / Green iguana (Iguana iguana) rear view of basking in sun, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico, May.

Claudio Contreras / Green iguana (Iguana iguana) resting portrait, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / Green iguana (Iguana iguana) resting portrait with mouth open, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Claudio Contreras / American crocodile (Crocodylus acutus) close up of underbelly of animal resting in shallow water, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Solvin Zankl / Female Acorn weevil (Curculio glandium) Niedersachsische Elbtalaue Biosphere Reserve, Lower Saxonian Elbe Valley, Germany, June.

Daniel Nunez / Dense vegetation in cloud forest, Sierra de las Minas Biosphere Reserve, Zacapa, Guatemala. January, 2023.

Jack Dykinga / Ficus tree (Ficus inspida) base with buttress roots covered in algae, surrounded by other trees in cloud forest, El Cielo Biosphere Reserve, Rio Frio, Tamaulipas, Mexico.

Claudio Contreras / Coastal lagoon at dusk. The water has a pink tint due to carotenoids produced by algae, Ria Lagartos Biosphere Reserve, Yucatan Peninsula, Mexico, August. Bookplate.