Cable car at the Rio Verde waterfall in the valley of the Pastaza River that flows from the Andes to the upper Amazon Basin, near Banos, Ambato Province, Central Highlands, Ecuador, South America

A wild brown-throated sloth (Bradypus variegatus), Landing Casual, Upper Amazon River Basin, Loreto, Peru, South America

A wild brown-throated sloth (Bradypus variegatus), Landing Casual, Upper Amazon River Basin, Loreto, Peru, South America

A wild brown-throated sloth (Bradypus variegatus), Landing Casual, Upper Amazon River Basin, Loreto, Peru, South America

Adult red-backed poison frog (Ranitomeya reticulata), Landing Casual, Upper Amazon River Basin, Loreto, Peru, South America

A wild brown-throated sloth (Bradypus variegatus), Landing Casual, Upper Amazon River Basin, Loreto, Peru, South America

Caterpillars on tree bark, Upper Amazon River Basin, Amazon National Park, Loreto, Peru, South America

Victoria water lilies (Victoria amazonica), Puerto Miguel, Upper Amazon River Basin, Loreto, Peru, South America

Small village on the El Dorado River, Upper Amazon River Basin, Loreto, Peru, South America

Village on the banks of the El Dorado, Upper Amazon River Basin, Loreto, Peru, South America

Sun coming through the forest canopy, Yanallpa Caño, Upper Amazon River Basin, Loreto, Peru, South America

Adult Hoatzin (Opisthocomus hoazin) perched over the El Dorado River, Upper Amazon River Basin, Loreto, Peru, South America

A wild brown-throated sloth (Bradypus variegatus), Landing Casual, Upper Amazon River Basin, Loreto, Peru, South America

A captured Peruvian tarantula (Theraphosidae spp), Landing Casual, Upper Amazon River Basin, Loreto, Peru, South America

Sunburst through clouds on the Pacaya River, Upper Amazon River Basin, Loreto, Peru, South America

Adult striated heron (Butorides striata) catching a fish in Nauta Caño, Upper Amazon River Basin, Loreto, Peru, South America

Adult sand-colored nighthawk (Chordeiles rupestris), Puerto Miguel, Upper Amazon River Basin, Loreto, Peru, South America

Cable car at the Rio Verde waterfall in the valley of the Pastaza River that flows from the Andes to the upper Amazon Basin, near Banos, Ambato Province, Central Highlands, Ecuador, South America

Adult Cocoi heron (Ardea cocoi) in flight on the Pacaya River, Upper Amazon River Basin, Loreto, Peru, South America

The Rio Verde waterfall, one of many in the valley of the Pastaza River that flows from the Andes to the upper Amazon Basin, near Banos, Ambato Province, Central Highlands, Ecuador, South America

Adult blue-and-yellow macaw (Ara ararauna), Amazon National Park, Upper Amazon River Basin, Loreto, Peru, South America

Woman carrying food in bowl, San Miguel Caño, Upper Amazon River Basin, Loreto, Peru, South America

The valley of the Pastaza River, that flows from the Andes to the upper Amazon Basin, near Banos, Ambato Province, Central Highlands, Ecuador, South America

Small town of Machay in the Pastaza River valley, that flows from the Andes to the upper Amazon Basin, near Banos, Ambato Province, Central Highlands, Ecuador, South America

The valley of the Pastaza River, that flows from the Andes to the upper Amazon Basin, near Banos, Ambato Province, Central Highlands, Ecuador, South America