Have you ever wondered how birds can stay warm in the cold winter months? Common redpolls are a great example. These energetic foragers weigh less than 15 grams and can survive temperatures that ...

Your backyard is filled with the gentle sounds of birdsong. It is a familiar and soothing rhythm. A sparrow dances around the ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. There’s an important concept in evolutionary biology called ...