Gabrielle Nevitt, a neurobiologist and physiologist at the University
of California, Davis, holds a rare Gould's petrel on Cabbage Tree
Island in Australia. Nevitt found that the petrel and other birds
called "tubenoses" locate their prey—tiny marine animals such as
krill—by tracking the airborne scent of a gas (dimethylsulfide). It is
released from tiny marine plants when krill graze on them.
(Photo courtesy of Gabrielle Nevitt, University of California, Davis)[back]
|
