Alex Mustard / Carapace of a dead olive Ridley turtle (Lepidochelys olivacea) entangled in discarded fishing gear. Indian Ocean, off Sri Lanka.

Claudio Contreras / Olive Ridley Sea Turtle (Lepidochelys olivacea) nesting, Arribada (mass nesting event), Playa Morro Ayuta, Oaxaca state, southern Mexico. Vulnerable species.

Ingo Arndt / Villagers collecting eggs from Olive ridley sea turtles (Lepidochelys olivacea) during the first two days of the arribada (mass nesting event). This is the only place in the world where it is legal to...

Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) digging their nests by night with stars during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.

Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore at twilight during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.

Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.

Felis Images / Olive ridley turtle (Lepidochelys olivacea) hatchlings walking towards sea at sunrise. Andhra Pradesh, India. 2017. Photo Anjani Kumar/Felis Images

Alex Mustard / Olive ridley turtle (Lepidochelys olivacea) entangled in discarded fishing gear. After taking this photo the photographer was able to free the turtle. Indian Ocean, off Sri Lanka.

Claudio Contreras / Crested caracara (Caracara cheriway) adult eating Olive ridley sea turtle (Lepidochelys olivacea) egg, juvenile trying to steal it, Arribada (mass nesting event), Playa Morro Ayuta, Oaxaca state, sou...

Claudio Contreras / American Black Vulture (Coragyps atratus) eating Olive ridley sea turtle (Lepidochelys olivacea) egg, Arribada (mass nesting event), Playa Morro Ayuta, Oaxaca state, southern Mexico.

Claudio Contreras / Olive Ridley Sea Turtle (Lepidochelys olivacea) nesting, egg in nest, Arribada (mass nesting event), Playa Morro Ayuta, Oaxaca state, southern Mexico, IUCN Vulnerable, August

Claudio Contreras / Biologist burying Olive Ridley Turtle (Lepidochelys olivacea) eggs seized from poachers by the authorities, Arribada (mass nesting event), Playa Morro Ayuta, Oaxaca state, southern Mexico. Vulnerable...