A recent study has determined that chins, a feature known only to exist in human mammals, may have been a byproduct of the shrinking of the jaws and teeth that evolved with the advent of cooking.
The existence of the human chin could be related to cooking.
According to new research, the feature likely evolved indirectly over time as ancient ancestors began cooking their food and no longer needed big teeth and jaws to process it.
This conclusion was based on an examination of the frontal jaws of more than 100 primate species.
Compared with historical data, the chin seems to have developed about 77 times faster than other features on average, discounting the possibility of random occurrence.
This evidence, along with t
