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A WHALE OF THE TIME - Coggle Diagram

- - - - hard-sharp teeth.
        
        killer whale.
        
        sperm whale,
        
        bottlenose dolphin,
    - - baleen
        
        bristly comb-like
        structures
        
        filter particles of food
  - - - dense fur
      - sharp claws
      - canine teeth
    - - dogs
      - skunks
    - - seals
      - sea lions
      - walrus
    - - sea otter (Enhydra lutris)
        
        lives in coastal kelp forests
      - marine otter (Lontra felina)
        
        same genus as freshwater river otters
      - Polar bear (Ursus maritimus)
        
        spend most of their time swimming
        in the ocean
        
        hunting seals on sea ice
  - - - Endothermy
      - insulating layers (Blubber)
        
        dense layer of fat tissue under the skin
    - - condition of a body system that is actively regulated to remain consistent
    - - obligate swimmer is any species that spends its entire life in water
- - - - extensive care is needed for
        the young.