Pugnax

“He had learned with the readiness peculiar to dogs how with the utmost delicacy to turn pages using nose or paws, and anyone observing him thus engaged could not help noting the changing expressions of his face, in particular the uncommonly articulate eyebrows , which contributed to an overall effect of interest, sympathy, and – the conclusion could scarce be avoided – comprehension.”

Thomas Pynchon, Against the day, 6