Facts about Black Bears

1. 08

   Territorial black bears mark their ranges by rubbing their bodies against trees, leaving scent marks that can persist for several weeks and communicate to other bears about food availability and mating status.

   Black BearsMay 14sharebehaviorcommunicationbiology
2. 07

   Omnivorous black bears consume up to 90 pounds of food daily during autumn hyperphagia, gaining approximately 3 pounds per day to prepare for winter hibernation.

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3. 06

   Black bears can climb trees up to 100 feet high using their sharp claws, a skill they retain throughout their entire lives unlike most other large mammals.

   Black BearsMay 14sharebehavioranatomymeasurement
4. 05

   Mother black bears typically give birth to one to three cubs during winter hibernation, with newborns weighing only 8 to 16 ounces at birth.

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5. 04

   In North America, black bears can live 20 to 30 years in the wild, with the oldest recorded individual reaching 39 years of age in captivity.

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6. 03

   A black bear's sense of smell is approximately 7,000 times more sensitive than a human's, allowing them to detect food sources from miles away.

   Black BearsMay 14sharebiologysensorymeasurement
7. 02

   During hibernation, black bears lower their heart rate from 40 beats per minute to just 8 beats per minute, allowing them to survive five to seven months without eating, drinking, or eliminating waste.

   Black BearsMay 14sharebiologyhibernationphysiology
8. 01

   Running at speeds up to 30 miles per hour, black bears can outpace most humans despite weighing between 200 and 600 pounds.

   Black BearsMay 13sharebiologymeasurementphysiology