Ferae naturae : Of a wild nature; -- applied to animals, as foxes, wild ducks, etc., in which no one can claim property.

Example:


Taxonomy
Unowned, ferae naturae, free encyclopedia, entity, claim ownership, animals, asteroids, private ownership, 433 Eros, search, tangible, piece of land, Earth, sovereign nations, ownership, natural objects, objects in space, Federal Court.

Defination from the web:
ferae naturae residing on unowned real property are not predisposed to one party or another in regards to possession. See: Pierson v. Post (3 Cai. ... of the estate, if pursuing or attempting to apprehend ferae naturae is likely to be deemed by the court, the ...