The content originally appeared on: CNN CNN - Extremely rare - and extremely adorable. The Chester Zoo in Cheshire, England, has welcomed the birth of a Western chimpanzee, the most endangered subspecies of chimpanzees. The zoo announced the baby boy's birth in a Thursday news release. The little one, born to mother ZeeZee, will join a troop of 22 Western chimpanzees at the British zoo. 'Miracle' elephant twins born at Rosamond Gifford Zoo 'We're incredibly proud to see a precious […]