1 Plant-eating animals spend most of their time |
eating and watching foOr predatoY8. For this reason,
they sleep for a very short ime.。 For examnple, horses
sleep for a couple of hours 4 day. Giraffes sleep for |
。 only half an hour. Both horses and giraffes sleep im
a standing position to respond to any danger qunckly.
How about humans? We eat both plants and
meat.。 We sleep for about eight hours a day. We
sleep shorter than meat-eating animals,but longer
op than plant-eating animals. Isnt it interesting?
