Famously solitary, tigers seldom live in groups unless they"re still cubs staying close to their mother. This rare "streak," as a group of tigers is called, is an exception. So much so, they became the subjects of a TV documentary called "Girl Gang of Telia." Today, on International Tiger Day, we"re featuring these tigress sisters from the Tadoba Andhari Tiger Reserve in central India, a protected area that includes Tadoba National Park.