Page 20 - World of Animals - Issue #36
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30 amazing facts about bears

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            Bears don’t hibernate
            Bears are possibly one of the most famous   10 degrees. Their metabolic rate also does not   autumn eating lots and increasing their body
            cases of hibernation, but whether they do   slow down quite as much as true hibernators   fat to ensure they have the energy reserves
            actually hibernate is up for debate. True   and, also unlike true hibernators, they are able   to see them through the cold weather when
            hibernators such as ground squirrels, bats and   to wake up quickly and easily to respond to   food is scarce. Many scientists believe that
            mouse lemurs reduce their body temperature   threats. So if bears aren’t hibernating, where   their period of winter inactivity is more like a
            to a degree close to freezing, whereas bears   do they go in winter? Well, they certainly   winter lethargy, or torpor, as it is more like an
            only reduce their body temperature by around   slow down, that’s for sure. Bears spend the   extended nap than a deep sleep.
            RIGHT Bears
            are not true
            hibernators, but
            rather extreme
            nap takers























                                                         “To make sure they are getting their daily

                                                              calorie intake, panda bears have to
                                                                 consume around 20 kilograms (44

                                                                   pounds) of bamboo every day”


                                                                      Panda bears              The ice isn’t the only
                                                                       spend 16                thing shrinking in
                                                                        hours a                the Arctic
                                                                        day eating             One of the main chemicals accumulating in the
                                                                        Pandas will eat around   blubber of seals, and subsequently in polar bears’
                                                                        20 different varieties of   food, is organohalogens, which can act like

                                                                        bamboo, but it is diffi cult   hormones once in the body.

                                                                        to digest and contains   This has led to shrinking penis and testicle
                                                                        very little in the way of   size in males and a reduction in ovary size in
                                                                        nutrients. To make sure   females. This is particularly alarming as polar
                                                                        they are getting their daily   bears have a low rate of reproductive success
                                                                        calorie intake, panda bears   anyway. Human pollutants are likely to cause
                                                                       have to consume around   further damage to reproductive rates for the
                                                                       20 kilograms (44 pounds) of   future. Bears grow slowly, mate infrequently,
                                                                      bamboo every day. Eating so   and mature at a late age, meaning they are

                                                                      much plant matter is definitely   slow to recover from anything that damages
                                                                     time consuming, and can take   their population. At a time when polar bears are
                                                                    16 hours of continual grazing for   undergoing severe habitat loss, it is an extra

                                                                   a panda to get its fill.     threat they may not be able to overcome.
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