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.
They are short, fat, and covered with as many as 30,000 spiny quills. All porcupines have quills. Africaâs crested porcupine has quills that are nearly a foot long (30 cm). Porcupines have soft hair, but on their back, sides, and tail it is usually mixed with sharp quills.