Tracking units on the shell of a wood turtle. The tracking information these GPS units collect is used to understand how wood turtles move throughout the year. Image credit: Smithsonian's Movement of ...
Somewhere over the North Sea, a barn swallow weighing less than a AA battery is carrying a transmitter the size of a fingernail. If the scientists behind the ICARUS project have their way, that tiny ...
It’s a crisp autumn morning, and the forest holds a quiet promise of motion overhead. Travelers arrive at a hidden nature preserve and pause, noticing faint shadows moving through the air and hearing ...