nostr:npub1knzsux7p6lzwzdedp3m8c3c92z0swzc0xyy5glvse58txj5e9ztqpac73p nostr:npub10mwv70vmglgla5ly5dflw49me04dwu3urm025zfe5kyfpzzm5gasgcxxep Fairly old for a transmissible cancer, though. Canine transmissible venereal tumour is reckoned to be 11,000 years old. And the one that's been killing Tasmanian devils probably originated less than forty years ago.