When young bears and mothers wake up in the springtime, it is not easy. The bears are in torpor and are often sleep deprived, which basically means they didn’t get enough sleep because their bodies were still working while they were hibernating. Most bears expend huge bursts of energy to arouse themselves during the winter season so their body temperature doesn’t go too low. By the end of winter, these bears have lost ½ of their body weight so they have to spend time eating. Spring isn’t easy because they know that there is a hard summer ahead. And food means competition and hard work because they have to regain all of their weight in just 3 months.
Bears come out of their dens in April, but are exhausted for weeks at a time. During hibernation these bears don’t roam very far. Though they lost many pounds, bears aren’t hungry right away. They usually feed on weak willows and bunches of snow fleas. Bears usually give birth in January and February, most of the time to 2 or 3 cubs. Mothers find trees with rough bark for their cubs to climb onto for safety. Slowly over time the bears’ energy gets to normal. And when plants start to sprout, that is when they have a lot of energy. Other animals such as bees, bats, and arctic squirrels behave exactly like this. First, they go into torpor, then they start eating for the short months ahead. This is incredible because now we know what bears are going through and how hard it is for them.
I chose this article because it sparked my interest, and I really wanted to know more about bears. This is important because know we know more about these bears behaviors. I think this is breaking news, and we didn’t know this much about hibernation. I think this relates to what we did in 1st grade, but I am not 100% sure. We still look at evidence the same.
By Anders 4L