nostr:npub1aztpp2l43tcz7s6kf00p3ufa4u9sxzyehxs2dmsy3275k202004qs3llsn nostr:npub10mwv70vmglgla5ly5dflw49me04dwu3urm025zfe5kyfpzzm5gasgcxxep - if all known transmissible cancers are this young, we either haven't looked hard enough or there must be some reason they "burn out" - which would be very interesting to understand. 

Theoretically there could be some reason *all* transmissible cancers have arisen only recently, but I can't believe that.