Chapter 4 Animal and Plant Adaptations

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Chapter 4Animal and Plant Adaptations

• ONeal 4th Grade Team

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Chapter 4 Vocabulary

• adaptation a structure or behavior that helps a
  living thing live in its surroundings.
• adapted made fit to live under certain
  conditions.
• protective colorations colors or patterns on an
  animal that help keep the animal from being seen
  by predators.
• migration movement from one place to another
  when the seasons change.
• hibernate to spend the winter in a state in
  which the body greatly slows down.
• nitrogen a material that plants need to grow.
• annual a plant that lives only one year.
• evergreen a plant that stays green all year,
  including firs, spruces, and pines.
• perennial a plant that can live two years or
  more.

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What is an adaptation?

• An adaptation is a change in an animals physical
  structure or behavior that helps an animal to
  survive in their habitat.
• Examples The shape of a birds beak, number of
  fingers and toes, or the color of an animals
  fur.
• Physical adaptations do not develop during one
  lifetime, but over many generations.

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Example of Adaptation

• The shape of an animals teeth is related to its
  diet.
• Herbivores, such as deer, have many molars for
  chewing tough grass and plants.
• Carnivores, such as lions, have sharp canines to
  kill and tear meat.

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Who experiences adaptations?

• All species have experienced adaptation and will
  continue to slowly adapt as the next generations
  are born.
• We will identify certain species from each of
  these groups and the reasons for their success
• Mammals
• Birds
• Reptiles
• Amphibians

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Mammals

• Endothermic or
• warm-blooded
• All have some type of hair
• Some are very specialized, such as white polar
  bear fur
• Method of locomotion
• Care for young

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Birds

• Leg Length
• Roseate Spoonbill (top right)
• Foot Webbing
• Laughing Gull (top left)
• Beak Shape
• Long Billed Curlew (bottom)

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Reptiles

• Exothermic or cold- blooded
• Scales
• Some undergo hibernation
• Lay eggs on land
• Leg structure and position

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Amphibians

• Exothermic
• Lay eggs in water
• Partially of fully webbed feet
• Have lungs or can absorb oxygen through their skin

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Animal Defense

• Some animals use these methods of defense to
  protect themselves
• Camouflage
• Snake
• Mimicry
• Mexican Milk Snake
• Bright colors
• Skunk and Poison Arrow Frog
• Hair projections
• Hedgehog quills
• Deer Antlers

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Adaptation Applications Lions

• Why are the eyes of a lion set in front of the
  head rather than on the sides?
• Answer Eyes in front of the head allow for depth
  perception and ability to judge distances when
  hunting.

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Adaptation Applications Lions

• What is the purpose of the mane on a male lion?
  What is the reason for the lions color?
• A thick mane helps the male to appear larger and
  serves as protection for the throat. The tawny
  brown coat color camouflages the animal and young
  among vegetation.

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Adaptation Applications Giraffe

• Why are giraffes able to go for long periods of
  time without water?
• Answer Giraffes drink water when available, but
  can go weeks without it. They rely on morning dew
  and the water content of their food.

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Adaptation Applications Giraffe

• How are their long necks adapted to their
  lifestyle?
• Answer This extra length is thought to have
  evolved to help the giraffe spot predators and
  other giraffes in the distance. Interestingly,
  giraffes and humans have the same number of
  vertebrate in their necks.

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Adaptation Applications Zebras

• How do zebras defend themselves?
• Capable of running up to 40 mph. Zebras defend
  themselves by kicking and biting. Coloration also
  plays a role in evading predators, although
  theories have not reached an agreement.

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Adaptation Games

• Animal Adaptations Game
• Harcourt animal adaptation game

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What is hibernation?
Why do animals hibernate?

• This is a very special kind of deep sleep
• It is brought on by short day lengths, cold
  temperatures and food shortages

• It is a survival strategy
• Dropping into a deep hibernation means animals
  are using less energy
• Food is scarce
• Animals miss the cold seasons

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How do animals prepare for hibernation?

• They try to put on as much fat as possible
  because they wont be eating much during the
  winter
• This is called brown fat, which is found across
  the back and shoulders, close to an animals
  organs
• Brown fat works hard to deliver quick energy to
  an animal coming out of hibernation

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Can you think of any animals that hibernate?

• Bear
• hedgehog
• Ladybird
• Snake
• Squirrels
• Bats

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Recap

• How do animals prepare for winter?
• What is hibernation and why do animals hibernate?
• Identify some animals that hibernate
• What are some dangers of hibernation?

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How are plants adapted to their environment?

• Each biomes plant adaptations

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Quia Review Links

• Rags to Riches