Bear Age Calculator

Understanding Bear Ages

Bears are long-lived mammals with lifespans varying significantly by species and environment. Most bears live 20-25 years in the wild, with some reaching 30+ years in captivity. Bears reach sexual maturity between 3-8 years depending on species and food availability. They have one of the slowest reproductive rates among mammals, with females typically producing cubs every 3-4 years.

Bear Life Stages

• Cub (0-2 years): Born helpless in winter dens, rapid growth, learning survival skills from mother
• Juvenile (2-4 years): Independence from mother, establishing territory, developing foraging skills
• Young Adult (4-8 years): Sexual maturity, first breeding attempts, peak physical development
• Prime Adult (8-18 years): Peak reproductive years, territorial dominance, optimal foraging ability
• Senior (18+ years): Declining reproduction, accumulated experience, slower movements

Bear Species Comparison

Bear Biology and Behavior

Bears are intelligent, adaptable mammals with excellent memory and problem-solving abilities. They have exceptional senses of smell and hearing, which are crucial for finding food and avoiding danger. Most bears are omnivores with diets varying seasonally based on food availability.

Key Bear Characteristics:

• Hibernation or winter dormancy lasting 3-7 months depending on climate
• Exceptional cognitive abilities including tool use and complex problem solving
• Delayed implantation allowing cubs to be born during winter hibernation
• Strong maternal care with cubs staying with mothers for 1.5-4 years
• Solitary nature except during mating season and mother-cub relationships

References

The lifespan and behavioral data used in this calculator are based on scientific research from reputable sources:

• National Geographic - Bears Facts and Information
• University of Montana - Grizzly Bear Biology
• San Diego Zoo - Brown Bear Reproduction & Development
• A-Z Animals - Bear Lifespan Facts