Slave Ship by Frederik Pohl
Paperback – Ballantine – 1957
“First they cracked the codes…. The big electronic calculators that handled math codes, production lines, found it simple to decipher the small but racy vocabularies of the animals.
Then man had achieved the age-old area. He could respond when his dog struggled to tell him something, and he could tell that foolish sheep that if he didn’t act right he’d be mutton; and being man, he could create the wildest, craziest secret weapon for the war that is man’s heritage but not that of the new, now-articulate minorities.”
Paperback original. VG; browning.