Sheep naturally live in herds.
Sheep are wooly. Sheep eat grass.
Being a key animal in the history of farming, sheep have a deeply entrenched place in human culture, and find representation in much modern language and symbology.
Sheep can self-medicate. They use plants and other substances that otherwise hold no nutritional value to them to prevent or treat disease, and teach their young to do the same.
Sheep were among the first animals to be domesticated, and they are raised all over the world. Wild sheep also live throughout the world — in the Middle East, Asia, Central Europe and North America — mostly in mountainous areas. Bighorn sheep live in the Rocky Mountain region of North America. Desert bighorn sheep live in Death Valley, California, as well as Nevada, Texas and northern Mexico. They can live on desert mountains as high as 4,000 feet (1,200 m). Urials can live even higher up. They are found in Asia and the Middle East on grassy terrains with elevations of up to 19,690 feet (6,000 m), according to the ADW.
I am sending you out like sheep among wolves. Therefore be as shrewd as snakes and as innocent as doves.
In order to be a perfect member of a flock of sheep, one has to be, foremost, a sheep.
A man who is free is like a mangy sheep in a herd. He will contaminate my entire kingdom and ruin my work.