Podcast
Questions and Answers
What is the initial weight range of polar bear cubs when they come out of the den?
What is the initial weight range of polar bear cubs when they come out of the den?
- 20 to 25 pounds (correct)
- 15 to 20 pounds
- 10 to 15 pounds
- 25 to 30 pounds
At what age can female polar bears like Polly have their own babies?
At what age can female polar bears like Polly have their own babies?
- 4 or 5 years (correct)
- 6 years
- 2 or 3 years
- 8 years
What is the maximum weight of a fully grown male polar bear?
What is the maximum weight of a fully grown male polar bear?
- 900 pounds
- 800 pounds
- 600 pounds
- 990 pounds (correct)
How long do the cubs typically stay with their mother after birth?
How long do the cubs typically stay with their mother after birth?
During which months do polar bears usually give birth?
During which months do polar bears usually give birth?
What is a maternity den?
What is a maternity den?
What is the life expectancy of polar bears in the wild?
What is the life expectancy of polar bears in the wild?
What is a characteristic behavior of young polar bears in the sub-adult stage?
What is a characteristic behavior of young polar bears in the sub-adult stage?
What weight range do female polar bears typically fall under when fully grown?
What weight range do female polar bears typically fall under when fully grown?
At what age are male polar bears typically ready to mate?
At what age are male polar bears typically ready to mate?
Flashcards
What is a life cycle?
What is a life cycle?
A series of changes that a living thing goes through from birth to death.
What is a sub-adult polar bear?
What is a sub-adult polar bear?
A young polar bear that is still learning to hunt.
What is an adult female polar bear?
What is an adult female polar bear?
A female polar bear that can have cubs.
What is a maternity den?
What is a maternity den?
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What is life expectancy?
What is life expectancy?
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What is the life expectancy of a polar bear in the wild?
What is the life expectancy of a polar bear in the wild?
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What is the life expectancy of a polar bear in captivity?
What is the life expectancy of a polar bear in captivity?
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When are female polar bears able to have cubs?
When are female polar bears able to have cubs?
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When are male polar bears able to have cubs?
When are male polar bears able to have cubs?
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How much does a fully grown male polar bear weigh?
How much does a fully grown male polar bear weigh?
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Study Notes
Polar Bear Life Cycle
- Polar bears, like all living things, have a life cycle that involves stages from birth to death.
- Cubs are born in dens and weigh 20-25 pounds when they emerge.
- Mothers teach cubs to hunt seals and fish.
Young Polar Bears
- Polar bears have a sub-adult stage, which occurs after leaving their mother but before reproducing.
- Siblings often stay together during this stage and share resources.
- Females typically can have cubs around 4 or 5 years old; males are usually ready by 6.
Adult Polar Bears
- Full-grown male polar bears can weigh up to 990 pounds.
- Females weigh between 300 and 600 pounds.
Pregnancy and Cub Development
- Females build dens (maternity dens) in October or November for pregnancy.
- Cubs are born in November or December and stay in the den until March or April.
- Mothers stay with their cubs for about 2.5 years until they become sub-adults.
Life Expectancy
- Wild polar bears typically live 15-18 years, although some reach 30.
- Captive polar bears can live up to 40 years due to protection from predators and elements.
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Description
Test your knowledge on the fascinating life cycle of polar bears, from their birth in dens to their growth as cubs and eventual adulthood. Learn about the unique stages of their life, including reproduction and care from mothers, and how young polar bears develop. Discover the facts behind their weight and typical lifespan in the wild.
