Sheep

The sheep has a very shy nature, but, contrary to what one might think, it is a very bright animal, gifted with a great long-term memory and facility for learning. The sheep is extraordinary quiet and gentle, and it has a strong sense of gregariousness: when a specimen of the flock manages to prevail on the others, it will determine the behaviour of the whole group.
 The sheep can live for 16-19 years.