Greece is among the European Union (EU) nations that have legalised cannabis for certain medical purposes. The country had grown and exported cannabis before its possession was banned in 1936.
Near the town of Vidangoz, Spain, the sheep will graze until mid-September when the weather changes, and Sanz will shepherd his flock back south. Modern farming methods have reduced the transhumance seasonal movement of livestock to greener pastures in Spain and other countries in recent decades.
Britain's Health Protection Agency has published an early genetic sequence of the new respiratory virus related to SARS that shows it is most closely linked to bat viruses, and scientists say camels, sheep or goats might end up being implicated too.
New diets for cows and sheep could reduce their greenhouse gas emissions, research funded by the British government's department for environment, food and rural affairs (Defra) shows.