Rift Valley fever virus causes economically devastating outbreaks of hemorrhagic fever in livestock such as sheep, goats and cattle. These mosquito-borne outbreaks lead to infection in people working ...

The scarps are caused by slip motion along individual faults and are aligned with the north-south axis of the valley (lower left to top right). [ See astronaut's image of rift valley .] The arid ...

Like dusty and deserted cowboy towns in an American western, the empty villages crop up one after another along the cracked roads of Kenya's Rift Valley. Some, like Mau Summit, once a bustling ...

From its northern reaches in Syria, the Great Rift Valley cuts a swathe through Jordan, pushing up the mountains that define many of the country's beautiful and well-managed nature reserves. For an ...