Scientists in Germany have shown that liver macrophages – the white blood cells that destroy pathogens and help clear ...

The team examined several parts of pigeons' bodies, including the eyes, beak, brain, spleen, and liver.

A quiet field can look completely ordinary until you notice the pattern. Many cows and deer seem to rest or graze with their bodies lined up roughly north-south. That odd detail first drew serious ...

Scientists may have found pigeons' magnetic compass in their livers, not eyes or beaks The discovery could explain how ...