unique mammalian characteristics:
DESCRIPTION
Unique Mammalian Characteristics:. Hair or Fur. Basic Structures of Fur. Scale Patterns. Deer Mink. Caribou Elk Moose. Functions of Fur. - PowerPoint PPT PresentationTRANSCRIPT
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Unique Mammalian
Characteristics:
Hair or Fur
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Basic Structures of
Fur
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Scale Patterns
Deer Mink
Caribou Elk Moose
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Regulate Body Temperature:
Endotherms! Insulation Water Proofing
Protect skin from sunlight Camouflage Sense organ Defense
Functions of Fur
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If the polar bear has clear fur, how
do they absorb sunlight for heat????
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DARK SKIN COLOR TO
ABSORB HEAT!!
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Hair is hollow to
provide insulation Heat is kept close
to the body
Insulation
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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
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Mammals have hair
to protect their skin from sunlight as well
If animals didn’t have fur/hair sun burning would occur
Sun protection
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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
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The echidna has
sharp spines or quills to defend themselves from predators
Defense
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Porcupine Quills will release
from body when another animal attacks
Defense
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Many mammals have
whiskers Used as a sensory
organ when sight can not be used to navigate
Sensory Organ
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1. Name 3 functions of mammal
fur/hair.2. Explain a defense
mechanism using fur/hair. 3. Name a specific “modified”
hair.
Review!!!