Qi was able to show that another chemical messenger called acetylcholine can trigger dopamine release in the bird’s brain ...

With it, you can watch the progress of birds as they waft their way across the nation and even track how many flew over your county the night before. The system uses radar because most species ...

Image by habrda via Depositphotos. Researchers recently uncovered footprints in Lesotho that resemble bird tracks. Amazingly, these prints date back about 215 million years, long before birds evolved!