thalarctos การใช้

• The polar bearhas been formally called both Ursus maritimus and Thalarctos maritimus.
• Is the polar bear Ursus maritimus or Thalarctos maritimus?
• The polar bear was previously considered to be in its own genus, " Thalarctos ".
• The more recent designation Thalarctos combines the Greek thalasso, or sea, and arctos, or bear of the north, according to Polar Bears Alive, a conservation group.
• The Asiatic black bear and the polar bear used to be placed in their own genera, " Selenarctos " and " Thalarctos "; these are now placed at subgenus rank.