Fox
The fox (Genus Vulpes) was a canine mammal native to planet Earth.

In 2268, Bob Wesley described James T. Kirk as "the fox in the hunt" in upcoming war games problem of the M-5 drills involving the M-5 multitronic unit. ()

In 2373, Commander Chakotay of the  told Captain Kathryn Janeway a parable of a fox and a scorpion. ()

In 2385, an image of a decomposing fox was experienced by several Zhat Vash members who had touched the Admonition. This vision was later seen by Sutra, who witnessed it upon mind melding with Dr. Agnes Jurati. ()

In 2383, Rok-Tahk was holding a holographic fox, she named Mr. Foxy, in the holoprogram based on the fox, chicken and grain problem. When the fox locked its' eyes on the chicken however, it leapt from Rok-Tahk's arms and preyed on the chicken. ()

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Earth animals
Canines