Rearranging the letters of 'A domesticated animal' gives:
Docile as a man tamed it.
(by Jean
Merges by hand) (2002)
Did tame Alsatian come?
(by Mick Tully using Anagram Genius) (2007) (pending approval)
A tame (idle) cat's domain.
(by Mick Tully using Anagram Genius) (2007) (pending approval)
Other related anagrams without their own page:
"Animal cruelty" -> "Mice, naturally." (by Rick Rothstein using Anagram Genius) (2004)
"Animal cruelty" -> "Clearly, I'm a nut." (by Rick Rothstein using Anagram Genius) (2004)
"Animal" -> "I'm anal." (by Cathal Mc Sharry by hand) (2004)
"Animal" -> "Animal." (by Stanley Accrington by hand) (2007) (pending approval)
"Royal Society for the Prevention of Cruelty to Animals" -> "Occasion, everyone! I hurry to stop ill-treatment of a fly!" (by Mick Tully using Anagram Genius) (2006)
"Cruelty to animals" -> "Actually, I monster." (by Aronas Pinchas) (2010) (pending approval)