In the mesopelagic twilight of the ocean, a ghostly ribbon undulates with almost mythic grace. It is the oarfish—long misunderstood, rarely seen, and still yielding secrets. Among its many curiosities

Hummingbirds are often called biological helicopters, and with good reason. These tiny, jewel-toned birds possess flight capabilities that are unmatched in the avian world—rivaling, and in some ways exceeding, the