This video contains Hindi meaning of Pitch. .. #LOGICAL #STUDENT #HINDI #MEANING #Pitch
The hedgehog's back contains two large muscles that control the position of the quills. The average hedgehog has about 5,000 to 6,500 quills that are strong on the outer surface but filled with air pockets on the inside. When the creature is rolled into a ball, the quills on the back protect the tucked head, feet, and belly, which are not quilled.
The most common species of domesticated hedgehog is the white-bellied or four-toed hedgehog (Atelerix albiventris). It is smaller than the European hedgehog, and thus it is sometimes called the African pygmy hedgehog.