Mary walks leisurely around her enclosure, her large tusks prominent, before using her long trunk to deftly draw up a drink of water.The female African elephant at Yagiyama Zoological Park in Sendai, northeastern Japan, is estimated to be 60 years old, making her the oldest African elephant in the country.Her wrinkles have increased with age, but Mary remains in good health and still has a hearty appetite for her favorite fruit. Zoo staff have introduced a range of measures aimed at helping her live as comfortably as possible in her later years."She's the longest-living African elephant in …READ FULL ARTICLE