Mountain chickadees in Boulder have evolved a different tune to avoid getting mixed up with their cousins, according to a new study led by the University of Colorado Boulder published Oct.
Black-capped and mountain chickadees are closely-related species that co-occur in Boulder County but occupy different habitats based on elevation. The Boulder Chickadee Study leverages an extensive ...
The results provide real-time evidence for one of Charles Darwin's famous theories and shed light on how pressure from human activity can impact wildlife's evolution. Mountain chickadees, common ...
We use pictures every day to help us take in and remember information. We scroll through the pictures on iPlayer rather than reading the names of the programmes. Road signs use symbols instead of ...
Photography from fashion and wildlife to art and the environment, the Snap! The London Standard pictures of the day show the biggest stories and must-see photographs from London and around the world.
Nat Geo’s 21 most compelling images of the 21st century Nat Geo’s 21 most compelling images of the 21st century These are our best animal photos of 2020 These are our best animal photos of ...
Ian Talboys took this photo of a grey heron fishing on a weir on the River Don at Danestone, Aberdeen. He said: "The perfectly still heron allowed me to take a long exposure photograph to give a ...