Endangered Sumatran tigers born in Greece as zoos build safety net

The world’s most endangered tigers have started a family in Greece, offering hope for a predator rapidly vanishing from the wild. Three two-month-old Sumatran tiger cubs received identification microchips and their first vaccinations on Tuesday at a zoo near Athens, as part of a global effort to build a backup population. The Sumatran tiger, classified as critically endangered, is found only on th