OCR Text |
Show j Reason for Snake's Hissi::g. The hissing of a snake is caused by the long, sac-like lung being inflated with air. which Is forcibly expelled through the glottis and nostrils. The puff adder makes the loudest and most prolonged hiss of any snake. When alarmed, snakes hiss with the object .-. frightening off their enemies. If snakes were not able to make their nresence known they would be frequently fre-quently trodden upon ami injure'! by the various creatures of veldt, forest and mountain. |