The rise of pastoralist peoples in the Eurasian steppes and their westward spread some 5,000 years ago may have been fuelled by sheep herding and people exploiting their milk.

Tucson water is trying a unique approach to keep the aquifer basins around the city under control. These basins are used to ...

"The goats are not only agile and small and can fit into tight spaces but they love terrain," Crow said. "Rather than cut this plant down and stimulate growth, [the goats] are pulling all the green, ...