Five young Pallas’s cats, dubbed the world’s grumpiest feline for their sullen facial expressions, went on display at a zoo in Japan on Thursday. Kobe Animal Kingdom put the four males and one female, all born in May at the facility, on public viewing last week. The animals are believed to be one of the oldest living cat species and are native to the dry, rocky areas of Central Asia. They are not commonly displayed at zoos as they are relatively more sensitive to infections, the Kobe zoo said...