Skin/Fur/Scales

Rosies research into how animals fur/skin/scales protect them and keep them waterproof.

SKIN 

 Skin is the largest organ of the body, with a complex structure being composed of many different tissues. It also performs many functions which are important to maintain internal body stability in the body. The most important of these functions is to control body heat, the skin also protects the body from physical damage and bacterial invasion in both humans and animals. HOW IS SKIN WATERPROOF? 

Skin acts as a waterproof, insulating shield guarding the body against the extremes of temperature, damaging sunlight and harmful chemicals. It also emits antibacterial substances that prevent infection, skin is also packed with nerves endings keeping the brain in touch with the outside world. Skin is an amazing versatile organ. Skin is mostly composed of water, like the rest of the human body. Composed of three layers, the epidermis, dermis and, subcutaneous fat. the dermis which is the second layer in our skin contains sebum which is a natural oil that keeps our skin lubricated, protected and water resistant.

 ANIMALS SKIN // PROTECTION

Skin exists on animals but of a different nature, the skin on amphibians, reptiles and birds is the first line of defence from external factors in harsh environments.`It is much like humans playing a main role in protecting the body against water loss, insulation, sensation and, the production of vitamin D fol ates. Animal skin varies from scales, fur and feathers, depending on environment and the climates, they do not wear their skin on the outside as their furs and feathers have unique properties that prevent water getting in while allowing insulation and condensation to escape.

  water which gets into the fur drains outwards keeping the skin of the animal dry. The wind then evaporates the water from the outer layer, the connection between skin and fur it a straight connection, this enhances breath ability, Fur garments on animals are immune to damage as the fur protects the skin, a layer of fat under the skin provides insulation.

animals with feather and furs use natural oils from their bodies to coat themselves making the outer layer water resistant. This is a method is called preening.