- They are all predators.
- They are all gray in color.
- They are all relatively large animals.
- They all have sharp teeth and claws.
- They all live in North America.
The gray predators include:
- The gray wolf (Canis lupus)
- The grizzly bear (Ursus arctos horribilis)
- The black bear (Ursus americanus)
- The cougar (Puma concolor)
- The lynx (Lynx canadensis)
- The bobcat (Lynx rufus)
- The wolverine (Gulo gulo)
- The fisher (Martes pennanti)
- The marten (Martes americana)
- The mink (Neovision vision)