They appear in packs of three around the entire snow biomie.
Find an isolated pack away from wolfs, Carnos or Yutyrannus and pick the, of with a powerful gun, note that they don’t heal when at a decent range from the player, once they are about two strides from you they will start to heal themselves.
For mobile players ;
Currently There is a Dungeon Going on, It has a sabertooth on it. ( I forgot the name- )
In the dungeon you fight daeodons right away, Some Implants are locked, but you can get lucky where they arent.
Hope this helps.
( I know its not muhc information, sorry )