bop = 'bob (one's head) rhythmically'

[Jonathan Lighter]

http://news.yahoo.com/sea-lion-bops-beat-challenging-popular-rhythm-theory-215700765.html
 :

"Sea Lion Bops to the Beat . . . Meet Ronan, the California sea lion who
bops her head in time to *Boogie Wonderland* and other tunes (see video
below). Few species apart from humans have demonstrated a sense of rhythm,
and the most convincing cases were all parrots and their relatives."

JL

--
"If the truth is half as bad as I think it is, you can't handle the truth."

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