Measuring a mere 3 inches long and weighing one-tenth of an ounce, roughly the same as a table tennis ball, the Calliope hummingbird is incredibly tiny. In fact, Eric Rasmussen, avian scientist at the ...

SALT LAKE CITY — It's about 3 inches long and weighs as much as a penny. But a calliope hummingbird is a tough little bird. It can fly up to 5,600 miles in a year. Despite its tiny stature, the ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. A 2020 study published in Science Advance reveals just how ...

Scientists once believed birds relied only on flight, talons and socialization for survival. But this one proves otherwise: it uses chemistry. For most of modern biology, there was a widely accepted ...