The crashing and smashing is just the sound of testosterone-mad male turtles hurtling themselves at one another's shells at sloth-like speeds to establish dominance in a sort of reptilian World Wrestling Federation show.
(The crashing and smashing; is; just the sound of testosterone-mad male turtles hurtling themselves at one another's shells at sloth-like speeds)
The crashing and smashing
is
just the sound of testosterone-mad male turtles hurtling themselves at one another's shells at sloth-like speeds