Fifteen years ago the yellow-eared parrot was presumed extinct. Its rediscovery in Colombia forced the Catholic Church to abandon an age-old tradition, and brought about one of the most amazing comebacks in the Americas.
Yellowstone’s rebounding grizzly bear population is an undeniable success. But figuring out how to manage the threatened omnivores—in light of potential food shortages and deadly human-grizzly interactions—isn’t so easy.
For centuries the study of bird migration has been riddled with mystery and unanswered questions: Where do birds go in winter? How far do they fly? Can they navigate a hurricane? Scientists are tapping new technologies to find