On July 31, 2014, scientists reported details of the evolution of birds from other theropod dinosaurs. Among the features linking theropod dinosaurs to birds are a furcula (wishbone), air-filled bones, brooding of the eggs, and (in coelurosaurs, at least) feathers.
Vitamin D Deficiency. People who are vitamin D-deficient can suffer some adverse effects, such as being more prone to certain cancers and possibly being affected by depression or other mood disorders, according to studies reported by MayoClinic.com.
A depressed mood may also be a sign of deficiency. In review studies, researchers have linked vitamin D deficiency to depression, particularly in older adults (19, 20). In one analysis, 65% of the observational studies found a relationship between low blood levels and depression.