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The milk of the female bear is rich in fat and antibodies and cubs may suckle for up to a year after they are born. By two to three months, cubs can follow their mother outside the den. They usually follow her on foot, but sloth bear cubs may ride on their mother's back. [102] [61] Male bears play no role in raising young.
While male bears potentially live longer in captivity, female grizzly bears have a greater annual survival rate than males within wild populations, per a study done in the Greater Yellowstone Ecosystem. [138] Annual mortality for bears of any age is estimated at 10% in most protected areas. [56]
There are around 80,900 licensed bear hunters in Canada. Canadian black bear hunts take place in the fall and spring, and both male and female bears can be legally taken, though some provinces prohibit the hunting of females with cubs, or yearlings. [26] Currently, 28 of the U.S. states have American black bear hunting seasons. Nineteen states ...
Video footage from the incident, caught on the live webcams, shows bear number 469, an adult male bear estimated to be 30 years old, attack bear number 402, who is an older adult female while the ...
Most young female bears stay within or near their mother's home range, while most males move farther away. Most adult sows die of natural causes (56%), while most adult male bears are killed by hunters (91%). [19] The oldest known male bear in the wild was 27 years old, and the oldest female was 35. [23]
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Researchers looked at changes in the habitat characteristics of dens used by females to give birth to cubs.
In Olympic weightlifting, male records vary from 5.5× body mass in the lowest weight category to 4.2× in the highest weight category, while female records vary from 4.4× to 3.8×, a weight-adjusted difference of only 10–20%, and an absolute difference of about 30% (i.e., 492 kg vs 348 kg for unlimited weight classes; see Olympic ...