Down syndrome, which causes a range of developmental differences and affects 1 in 700 newborns in the United States, is caused by the presence of an extra copy of chromosome 21. Mongkolchon ...

A "bumpy" giraffe covered in huge lumps at a national park in Africa may be infected with a virus that rarely affects these tall animals, experts say. Photos of the giraffe (Giraffa camelopardalis ...

Earlier this week, Brevard Zoo officials announced the death of Doc, a popular 22-year-old giraffe. Doc, who lived well-past the 16.5 normal age span for giraffes, showed recent signs of declining ...