Polar Bear Life Cycle: Lesson for Kids

Lesson Transcript
Instructor: Mary Grace Miller

Mary Grace has taught first grade for 8 years and has a Bachelor's degree in Elementary Education and is licensed in ESL.

You may know a little bit about polar bears and where they live, but how about their life cycles? This lesson will take you through the life cycle of Polly the polar bear from when she is first born to when she has babies of her own!

Life Cycle & Baby Polar Bears

A life cycle is a series of changes in a living thing from birth to death. Any living thing, including all plants and animals, has a life cycle. Let's take a look at Polly the polar bear and her life cycle!

Polly and her brother and sister were born in a den. When the cubs are ready to come out of the den, they weigh twenty to twenty-five pounds. Now their mother will make sure that they're safe and teach them how to hunt the seals and fish that they like to eat.

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  • 0:05 Life Cycle & Baby Polar Bears
  • 0:33 Young Polar Bears
  • 1:00 Adult Polar Bears
  • 1:42 Life Expectancy
  • 2:08 Lesson Summary
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Young Polar Bears

Polar bears like Polly have a life stage called the sub-adult stage. This is a life stage that occurs after a polar bear leaves her mother and before she can have babies of her own. During this time, polar bear siblings often share food and live together. Female polar bears like Polly are able to have their own babies around age 4 or 5, while male polar bears like her brother are not ready to have babies until age 6.

Adult Polar Bears

When they're fully grown adults, male polar bears can weigh as much as 990 pounds and female polar bears, like Polly, can weigh between 300 and 600 pounds!

Time is flying and Polly is now 5 years old. It's hard to believe it's time for Polly to start having cubs of her own. She makes a den for herself in October or November, and that's where she will stay the whole time she is pregnant. These dens are sometimes called maternity dens.

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