Sex selection creates distinct hummingbird species on small Jamaican island / Hummingbirds Living in a Hive Found for the First Time / New study offers insight into hummingbirds' hibernation-like rest / 'Metabolic knife edge': Study offers insight into hummingbirds' hibernation-like rest / Hummingbird flower mites found to use electroreception to hitch rides on hummingbirds between flowers / How hummingbird torpor allows for day-to-day survival in an uncertain environment / That's no straw: Hummingbirds evolved surprisingly flexible bills to help them drink nectar / Miniature tag offers unique insight into the movement of hummingbirds / Hummingbirds thrive on an extreme lifestyle. Here's how. / Ornithologists discover world's largest hummingbird is actually two species