Atrophy of paraspinal muscles is common in low back pain (LBP). Early studies report atrophy and abnormalities of the paraspinal muscles in 20% to 60% of people with chronic LBP.More recent data suggest a reduced cross-sectional area of multifidus at L4 and/or L5 in chronic LBP.ntroduction. Atrophy of paraspinal muscles is common in low back pain (LBP). Early studies report atrophy and abnormalities of the paraspinal muscles in 20% to 60% of people with chronic LBP. More recent data suggest a reduced cross-sectional area of multifidus at L4 and/or L5 in chronic LBP.
Hyenas usually bear litters of two to four cubs, which, unlike the other two species, are born with their eyes open. Cubs begin to eat meat from kills near the den at about 5 months, but they are suckled for as long as 12 to 18 months, an unusually long time for carnivores.
Giant pandas. Some 99 percent of a giant panda's diet is comprised of the leaves, shoots, and stems of bamboo. Like eucalyptus, bamboo doesn't have a lot of nutritional value, so pandas have to eat 26 to 83 pounds of the tough, fibrous plant a day. China's giant pandas are from the animal order Carnivora, though, and so they occasionally will eat small rodents. (And in captivity, according to the Smithsonian National Zoo, the bears eat bamboo, sugar cane, rice gruel, a special high-fiber biscuit, carrots, apples, and sweet potatoes.) 5. Monarch caterpillars