Australopithecus afarensis is one of the longest-lived and best-known early human speciesâpaleoanthropologists have uncovered remains from more than 300 individuals ! Found between 3.85 and 2.95 million years ago in Eastern Africa ( Ethiopia , Kenya , Tanzania ) , this species survived for more than 900,000 years , which is over four times as long ...
Contact dermatitis is a rash on the skin that can be itchy, painful, tender swollen and even blistered. Cradle cap is common for infants and causes thick, itchy, crusty, yellow or brown scales on the scalp. Symptoms of dry skin include scaly, rough, itchy, flakey, cracked skin, as well as chapped or cracked lips. Dandruff is a common condition that causes itching and flaking of skin on your scalp. A drug allergy is an allergic reaction to a medication and can cause a rapid heartbeat and difficulty breathing.
Scalp psoriasis. 1  Overview Scalp psoriasis: When psoriasis forms on the scalp, it can creep beyond the scalp. Scalp psoriasis: Overview Psoriasis (sore-EYE-ah-sis) can appear anywhere on the skin. 2  Symptoms Scalp psoriasis: It can appear behind the ear as shown on the left. It can cause a silvery-white scale and temporary hair loss as shown on the right. Scalp psoriasis: Signs and symptoms . Psoriasis can appear anywhere on the scalp. Sometimes a small patch develops, which can be easy to hide with hair. Scalp psoriasis also can cover the entire scalp.