People with an ‘overweight’ body mass index live longer than those with one in the ‘healthy’ range. Plus, a beautiful blob fossil illuminates the origin of vertebrates and disinformation researchers are facing scrutiny in the United States. People with an ‘overweight’ body mass index live longer than those with one in the ‘healthy’ range. Plus, a beautiful blob fossil illuminates the origin of vertebrates and disinformation researchers are facing scrutiny in the United States.