Uncovering the Secrets Behind Hummingbirds’ Extreme Lifestyle
A green-crowned brilliant hummingbird feeds on a cactus flower in Costa Rica. Jon G Fuller / Eye Ubiquitous / Universal Images Group via Getty Images Everyone loves to watch hummingbirds—tiny, brightly colored blurs that dart about, hovering at flowers and pugnaciously defending their ownership of a feeder. But to the scientists who study them, hummingbirds…
