A very small cub was photographed in Chistochina this week, raising questions about why it has not grown larger for this late in the year.
The seasonal sensitivity of brown bear denning phenology in response to climatic variability
/ Delgado et. al
For brown bears (Ursus arctos), hibernation is a critical part of the annual life cycle because energy savings during hibernation can be crucial for overwintering, and females give birth to cubs at that time. For brown bears (Ursus arctos), hibernation is a critical part of the annual life cycle because energy savings during hibernation can be crucial for overwintering, and females give birth to cubs at that time. For hibernation to be a useful strategy, timing is critical. |
American Black BearUrsus americanus
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