Zoo Atlanta is mourning the loss of a beloved mainstay at the zoo - Chelsea, a 20-year-old Sumatran tiger. The Zoo announced Wednesday that it made the decision to euthanize the geriatric tiger ...

A zoo is mourning the death of a 21-year-old Sumatran tiger who made worldwide headlines. Shepreth Wildlife Park in Cambridgeshire said Ratna was "put to rest" on Tuesday after her health and ...