An eight-month-old female slender loris waits to be given her first health check by the veterinary team at London Zoo.

在伦敦动物园，八个月大的雌性懒猴身体显瘦，正等待兽医为她做第一次健康检查。

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The slender loris is native to India and Sri Lanka, where experts fear it is becoming extinct.

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While the slender loris is extremely rare, other types of loris thrive in parts of South Asia and South East Asia.

BBC: 'Extinct' primate, slender loris, pictured in Sri Lanka

"This is the first time we have been able to conduct such a close examination of the Horton Plains slender loris, " he said.

BBC: 'Extinct' primate, slender loris, pictured in Sri Lanka