By William B. Davis, Madison Dong, Judson Jones, John Keefe, Joey K. Lee and Bea Malsky from NYT World https://ift.tt/u1TmSHQ
Osteocalcin, a protein secreted within our bone structure, helps us flee when we fear something. This new discovery was recently discovered by Gérard Karsenty, a Columbia University geneticist. This means that the main purpose of the bone structure that has evolved in animals is to help us escape from fear.