animal (n.) Look up animal at Dictionary.com
early 14c. (but rare before c.1600, and not in KJV, 1611), "any living creature" (including humans), from Latin animale "living being, being which breathes," neuter of animalis "animate, living; of the air," from anima "breath, soul; a current of air" (see animus, and compare deer). Drove out the older beast in common usage. Used of brutish humans from 1580s.
animal (adj.) Look up animal at Dictionary.com
late 14c., from animal (n.). Animal rights is attested from 1879; animal liberation from 1973. Animal magnetism originally (1784) referred to mesmerism.