Western Lowland Gorilla

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Western Lowland Gorilla
Zoorithmetic Project
By Kari Grade 4 2004
Photo Courtesy of Woodland Park Zoo
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• HabitatAll gorillas live in rainforests, but
  different kinds may live up in the mountains or
  down at sea level.
• Arm Span
• Male gorillas can reach almost eight feet across,
  while females are slightly smaller at 6.5 feet.
• WeightAdult male weight 350-600 pounds (157-273
  kg)Adult female weight 150-300 pounds (66-136
  kg)
• Life SpanEstimated up to 50 years in the wild.
  Average 30-35 years in zoos. Record is 54 years.
• Gorillas build a nest every night out of plant
  material to sleep in and a day nest for their
  midday rest!
• Adult male gorillas eat about 70 pounds (32 kg)
  of food per day. Adult females eat about two
  thirds of that amount!
• Gorillas can make up to 22 vocalizations such as
  grunts, laughs, hoots, barks and screams, each
  with its own specific meaning!
• All information taken from Woodland Park Zoo
  website, http//www.zoo.org

Interesting Facts
Photo Courtesy of WPZ.
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Problem 1
Female gorillas eat about 2/3 as much food as
male gorillas. If a typical female eats about
50 pounds of vegetation a day, how much does the
male eat?
Photo Courtesy of WPZ.
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Problem 2
Photo Courtesy of WPZ.
Female gorillas in the wild have their first
offspring at about 10 years old and mate about
every four years after that. If the average
lifespan of a gorilla in the wild is 50, and they
have only one baby at a time, about how many
babies will one gorilla usually have?
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Problem 3
Photo Courtesy of WPZ.
Male gorillas weigh between 300-600 lbs., and
female gorillas weigh between 150-300 lbs. About
what fraction of the male gorillas weight are
females?
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Fighting to Survive...
This slide should contain a one-two paragraph
essay describing why your animal is endangered or
threatened. You should also include ways humans
can help preserve the animal.
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Biography
My name is Kari. I teach fourth grade at Martin
Sortun Elementary. My favorite activities are
reading, listening to music, traveling, and
skiing. This is a picture of my 03-04 class
after going to Woodland Park Zoo.