Feathers are epidermal growths attached to the skin and arise only in specific tracts of skin called pterylae.

'Hair' is a protein filament that epidermal growth from hair follicle deep within the dermis.

Delta and Notch-like epidermal growth factor-related receptor is a protein that in humans is encoded by the DNER gene.

Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds and some non-avian theropod dinosaurs.

Mammalian epidermal growth factor receptor substrate 15 (EPS15), which is involved in cell growth regulation.

Mammalian epidermal growth factor receptor substrate EPS15R.

Human epidermal growth factor receptor-2 (HER-2/neu) is a genetic protein that is in part responsible for how certain cancer cells grow, divide, and repair themselves.

But about 15 of 1,000 cells responded to the bracing effects of epidermal growth factor.

The five known members of the family share an elongated structure and many calcium-binding sites, owing to the presence of tandem arrays of epidermal growth factor-like domains.

Feathers are epidermal growths which form an outer covering on birds and some dinosaurs.