<classify> Izvi zvinotsigira kuti mamwe madinosaur aiva neminhenga, iyo inova dzidziso yavakuzivikanwa nevakawanda, uye zvinojekesa zvimwe zvinhu zvisingawanikwe pane zvakacherwa, zvakadai seruvara uye mumhu wezvaakanga akaita.  <topic>: sciece 