US scientist speculates about salmons' homing ability

摘要

Precisely how marine creatures such as salmon and turtles make thek way back thousands of kilometres to thek bkthplace to reproduce is likely a.-two-step process according to a US-based professor of biology Dr Kenneth kohmann, a professor at the University of North Carolina Chapel Hill campus is the lead author of a theoretical paper which carrie out some months ago suggesting that salmon and sea turtles may read the magnetic field of thek home area and have thek own inbuilt Global Positioning System (GPS) with which they imprint themselves as they navigate thek way out into the open ocean to feed.