May 21 (Reuters) - A new fossil of the Cretaceous Period dinosaur Psittacosaurus, a dog-sized herbivore with a parrot-like beak, that was donated to a Chinese university came with a surprise - one ...

(Reuters) - A new fossil of the Cretaceous Period dinosaur Psittacosaurus, a dog-sized herbivore with a parrot-like beak, that was donated to a Chinese university came with a surprise - one revealed ...

(Special to The Root) — Skin color is one of our most important biological traits. Its many shades evolved as humans moved far and wide into regions with different intensities of sunlight. Skin color ...

Ancient DNA from 348 individuals who lived between 1,700 and 45,000 years ago is reshaping what we know about the evolution of skin color in Europe. A new study suggests that up until around 3,000 ...

Biology -- Skin's natural palette -- Original skin -- Out of the tropics -- Skin color in the modern world -- Shades of sex -- Skin color and health -- Society -- The discriminating primate -- ...