Evolution of the cochlea and the elongated cochlea allows for better sensitivity for higher frequencies. As in all lepidosaurs and archosaurs, the single-ossicle (columellar) middle ear transmits sound to the footplate of the columella, which sends a pressure wave through the inner ear. In snakes, the basilar papilla is roughly 1mm long and only responds to frequencies below about 1 kHz. In contrast, lizards tend to have two areas of hair cells, one responding below and the other above 1 kHz. The upper frequency limit in most lizards is roughly 5–8 kHz. The longest lizard papillae are about 2mm long and contain 2000 hair
Jock Stirrup security co-ordinator and during one of his visits to Iraq, Stirrup met the new Basra security coordinator, General Mohan. Mohan wanted the British forces to withdraw from Basra and Stirrup stressed that once British forces had departed, Mohan's Iraqi forces would have to deal with security. Both Mohan and Stirrup were clear that retaining British forces outside Basra would be an insurance policy against a deteriorating situation within Basra as well as give Mohan something additional with which he could threaten the militias. Stirrup was concerned that a redeployment would look as though the British had been "bombed out of