noun
frenzy
FREN-zee/ˈfrenzi/
A state of wild excitement or uncontrolled activity.
The supporters cheer in a frenzy of excitement.
Etymology
Old French frenesie meant madness. English frenzy first described delirium or insanity, then broadened to an excited state of mind—the connection behind its use for wild excitement or uncontrolled activity.
In context
the infamous feeding frenzy may instead be incited by several different stimuli. The head shaking actions of other sharks and the vibrations of the first animals to feed appear to excite many of the sharks.