DYK? Sheep can remember 50 images for up to two years. Learn more about the hidden lives of sheep: http://www.peta.org/issues/animals-used-for-clothing/hidden-lives-of-sheep.aspx?utm_campaign=0712+hidden+lives+of+sheep&utm_source=PETA+Twitter&utm

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DYK? Sheep can remember 50 images for up to two years. Learn more about the hidden lives of sheep: hidden lives of sheep&utm_source=PETA Twitter&utm_medium=promo