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Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.

Secreted inhibitors of Wnt and IGF signaling control hair and tooth development, creating species-specific patterns.

Marsupial hair structure and keratin distribution are similar to placental mammals.

Camel skin has typical mammalian layers, with hair follicles, glands, and muscles, varying by body area.

CARB is a strong barrier in human hair that prevents dye penetration.

A tough membrane between the outer and inner layers of human hair protects it from damage.

The 4C32 gene may help in mouse skin development and differentiation.

Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.

Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.

The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.

Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.

Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.

Brandt's hedgehog has thick skin on its back and many glands near its nostrils.

A specific protein in chicken embryos links early skin layers to feather development.

Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.

Hair proteins change location and structure as hair cells mature.

The hair cuticle is made of tough proteins that protect the hair, but more research is needed to fully understand its structure.

Certain skin cells near the base of hair muscles may help renew and stabilize skin, possibly affecting skin disorder understanding.

Scaffoldin helps form hard skin structures in chicken embryos.

Reptile skin hardens by layering beta-proteins on keratin.

The Cell Membrane Complex in hair has both water-attracting and water-repelling layers.

The silver marmoset's skin is thin, lacks pigment cells, and has unique features like keratinized spines and specialized glands.

Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.

Hairless mice have longer hair follicles and abnormal structures during the catagen phase.

Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.

Lizard claws have hair-like keratins similar to those in mammals.

There are two types of stem cells in rodent hair follicles, each with different keratin proteins.

A new pair of mouse keratins, 65 kD and 48 kD, are found in specific skin areas and are linked to a unique skin differentiation type.

The study found that mouse sweat glands develop before birth, mature after birth, and have specific keratin patterns.