What do the scientific names of the grizzly and polar bears tell about their similarity to each other?

the polar bear scientific name is Ursus maritimus Grizzly bear scientific name is Ursus arctos

As per the taxonomy classification, which can be read here, species which are closely related to each other are grouped together. In bears case, they all are categorized into the genus Ursus.

Both Polar bear and Grizzly bear share many characteristics with each other and are thus grouped together in the same genus. This also means that we can safely assume that both the animals shared a common ancestor also.

The scientific names of the grizzly bear (Ursus arctos horribilis) and the polar bear (Ursus maritimus) suggest that they both belong to the same genus, Ursus, indicating their close evolutionary relationship. The specific epithets "arctos" and "maritimus" refer to their habitats or characteristics: "arctos" meaning "of the north" or "belonging to the Arctic," and "maritimus" meaning "of the sea" or "associated with the sea," reflecting the polar bear's preference for sea ice habitats. While they have distinct adaptations for their respective environments, their taxonomic classification indicates their shared ancestry and certain similarities in physiology and behavior.