The 52-Hz Whale

Twelve years of tracking 52-Hz whale calls from a unique source in the North Pacific
PDF available online through the Defense Technical Information Center

Our hydrophones show us the trail
Of a Whale with a wondrous wail;
Though long it may call,
There’s no answer at all;
It is The World’s Loneliest Whale.

Watkins, W.A., Daher, M.A. and George, J.E. 2004. Twelve years of tracking 52-Hz whale calls from a
unique source in the North Pacific. Deep-Sea Research, Part I, pp. 1889-1901