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.
Turns out the multitasking vitamin might also help combat anxiety and depression. A 2008 study of 441 overweight and obese men and women in Norway found that those given 20,000 and 40,000 IUs per week of vitamin D supplements had significantly less depression symptoms after one year than those in a placebo group.