Hair or Fur.  Basic Structures of Fur   Scale Patterns Deer Mink Caribou Elk Moose.

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Presentation transcript:

Hair or Fur

 Basic Structures of Fur



 Scale Patterns Deer Mink Caribou Elk Moose

  Regulate Body Temperature: Endotherms!  Insulation  Water Proofing  Protect skin from sunlight  Camouflage  Sense organ  Defense Functions of Fur

 If the polar bear has clear fur, how do they absorb sunlight for heat????

 DARK SKIN COLOR TO ABSORB HEAT!!

  Hair is hollow to provide insulation  Heat is kept close to the body Insulation

  Very soft, insulated under coat which protects the outer layer of long guard hairs  The outer layer traps air to keep them dry and warm underwater Water Proofing

  Mammals have hair to protect their skin from sunlight as well  If animals didn’t have fur/hair sun burning would occur Sun protection

  Mammals use their fur to help them hide from predators  The snowshoe hare is white during the winter to help blend in with the snow, and brown during the spring/summer time to help blend in to the forest Camouflage

  The echidna has sharp spines or quills to defend themselves from predators  Quills will release from body when another animal attacks Defense

 Warning Coloration!

  Many mammals have whiskers coming out from their snout  Used as a sensory organ to feel around when sight can not be used to navigate food Sensory Organ



 1.Name 3 functions of mammal fur/hair. 2.Explain a defense mechanism using fur/hair. 3.Name a specific “modified” hair. Review!!!