Children (26 direct children, 76 direct and indirect children):
Polar bear
(tree size 1)
Ursus maritimus
Brown bear
(tree size 26)
Mexican grizzly bear
Ursus americanus
(tree size 16)
American black bear
Ursus thibetanus
(tree size 7)
Tibetan bear
Ursus spelaeus
Cave bear
Ursus deningeri
Ursus minimus
Ursus inopinatus
Macfarlane's bear
Grizzly–polar bear hybrid
Ursus maritimus × ursus arctos
Ursus etruscus
Etruscan bear
Ursus ladinicus
Ursus dolinensis
Ursus wenzensis
Ursus rossicus
Ursus savini
Gamssulzen cave bear
Ursus ingressus
Ursus melanoleucus
Giant panda
Ursus avernensis
Ursus lasiotus
Ursus nasutus
Ursus sp.
Ursus lotor
Ursus meles
Ursus malayanus
Ursus ornatus
Ursus taxus