Wildlife photographer Andy Rouse made a series of photographs showing Mountain Gorillas in Rwanda who had been eating the fermented sap from bamboo shoots.
"It was not exactly Gorillas In The Mist, more like gorillas who were pissed," said Rouse.
"Some were running round cackling to each other, others were going mad swinging through the trees, some were just lying on the ground in an inebriated state."
Gorillas eat bamboo all year and can tolerate a lot of it before getting intoxicated; usually they eat it with a handful of other greenery to water it down. Sometimes however they over-indulge, a habit they share with chimps and elephants.
"When I went back the next day," says Andy, "it was all very quiet, as if they were nursing gorilla-sized hangovers"
Link: Photo Set at Telegraph.co.uk