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.
Hyena. There are four species of Hyena: spotted, brown, striped, and the aardwolf. All hyenas are usually nocturnal. The spotted hyena is the most well known. Spotted hyena live in Africa in savannas, grasslands, woodlands, forest edges, subdeserts and mountains.They live in territorial clans of related individuals, sometimes up to 80 members. Spotted hyenas are hunters and scavengers. Besides flesh, they eat skin, bones, and even animal droppings.Spotted hyenas are 28 to 35 inches tall and weigh 90 to 190 pounds.hey live in territorial clans of related individuals, sometimes up to 80 members. Spotted hyenas are hunters and scavengers. Besides flesh, they eat skin, bones, and even animal droppings. Spotted hyenas are 28 to 35 inches tall and weigh 90 to 190 pounds.