Trivia

Hard

The Most Accurate Way To Determine The Age Of Bears Is To?

Examine Their Claw Growth
Illuminate Their Retinas
Count Their Tooth Rings
Monitor Hip Degeneration
Photo of a bear sitting in a meadow.
Davidvraju/Wikimedia

Answer: Count Their Tooth Rings

In a curious crossover between checking the age of a tree and checking the age of a bear, the most accurate way to do both is to count their rings. Specifically, in the case of bears, the best way to determine the age of a bear is to examine a cross-section of their teeth (the outer part of the root, called cementum) under a microscope and count the layers.

Much like trees go through periods of growth and rest that create the rings of their trunk, bear teeth also go through periods of growth and rest continuously over the course of the bear’s life. Every year a new lighter colored layer forms and during the bear’s hibernation period, a thin black layer forms.

Not only can you count the black lines to see how many years the bear has been alive, but you can also examine the spacing between them to learn about the bear’s general health including if it has given birth to and raised cubs. The growth layers on mother bears’ teeth are thinner during the years they have cubs because much of the calcium and nutrients that make up tooth growth go to nursing the cubs.

Obviously this method, as you would assume, is reserved for posthumous examination as, unlike trees, no bear would stand for such an invasive examination.

Trivia

Easy

What Early Soft Drink Brand Lives On As A Slang Term?

Trivia

Hard

Parasitic Infections Compel Infected Grasshoppers To What?

Trivia

Very Hard

Burger King Created A Towering Burger To Draw Awareness To What?

Trivia

Hard

Actress Angelina Jolie Has A Species Of What Creature Named After Her?

Trivia

Hard

The First Automobile Road Trip Was Through?

Trivia

Hard

Which Of These Actors Has Portrayed Batman In The Most Films?

Trivia

Hard

In 1921 The State of Virginia Sent London A Statue of George Washington And?

Trivia

Hard

Crayola’s Iconic 64-Crayon Box Was Introduced On Which Of These TV Shows?

Trivia

Hard

Which Of These Colors Appears Least Frequently In National Flags Around The World?

Trivia

Easy

Which One Of These Common Idioms Was Originally An Advertising Slogan?