ah Zhang Science

Nola the Northern White Rhino’s Death Leaves Just Three on Earth

Nola. Lenny Ignelzi/AP

Animals dying peacefully of old age is rarely newsworthy, but the death of Nola the northern white rhino at the San Diego Zoo on Sunday made international headlines. Nola was one of only four northern white rhinos left on Earth; her death is a real-time window on extinction. Read more.