Carl Safina wonders in Song for the blue ocean…

“Facts hint at further mysteries. Over thousands of unmarked miles the bluefins come and go, flooding into these New England waters during summer like high tide,expelled for the winter like an exhaled breath. Somehow, all these animals know where to go: into the Gulf Stream or down to the breeding grounds. What instincts rule their motivations and desires? After seven winters in the Gulf Stream, what impulse, what sensation, first turns their head south to seek their spawning ground? They move of their own volition, and we have no knowledge of their urges.”

what about us, Homo sapiens?