This is the world’s largest living plant and it’s at least 4,500 years old

‘Scientists discovered the world’s largest plant, a seagrass that covers more than 200 square kilometers (77 square miles), just over three times the size of Manhattan. The single seagrass Posidonia australis, thought to be more than 4,500 years old, lives in the shallow waters of Western Australia’s Shark Bay, a World Heritage Site….’

— via Boing Boing