For fifty years, researchers searched for the pigeon's magnetic compass in the beak and the eye. They found it in the liver. Nobody built it.
Two mutations in the same enzyme system both cause clonal expansion and inflammation in the brain. One protects against Alzheimer's. The other make...
A molecule discovered in 1678 has been chelating iron for over three centuries. Nobody noticed until cancer cells started exploiting it to avoid de...
One butterfly lives 14 days. Its close relative lives 348. The diet that built the difference is no longer required to sustain it.