Polar Bears displaying dexterity in their dietary habits and exhibiting their ability to be opportunistic carnivores based on the prey that is available to them .............Now for the first time, the Bears have been observed preying on Dophins, likely those that somehow got trapped under ice before making their way south for the Winter

http://upi.com/5022758

Researchers observe 

polar bears eating dolphins, 

freezing leftovers

Being almost always hungry, polar bears are rather
opportunistic predators.

By Brooks Hays   |   June 10, 2015 at 1:45 PM

 0 Comments

A male polar bear scavenges upon one of the dolphin carcasses.
 Photo by Jon Aars/Polar Research

SVALBARD, Norway, June 10 (UPI) -- Researchers have
documented a group polar bears with a taste for dolphin. It's
 the first time bears have been recorded eating the marine
mammal.

The first instance was documented in 2014. Researchers with
 the Norwegian Polar Institute came upon a polar bear with
 two dead white-beaked dolphins. The scientists believe the
 bear caught the two dolphins the same way bears catch seals,
 by waiting for specimens trapped under the ice and in need
 of oxygen to emerge through a hole in ice.

"They will eat any marine
 mammal 
given a chance,"
 researcher Jon Aars 
told the 
NewScientist
. "The bigger
 surprise was that the
 dolphins
 were
 entrapped before 
they could migrate south for the winter."

Researchers believe the dolphins were enticed north by
 warmer than usual waters and subsequently blown off course.

"We suggest they were trapped in the ice after strong northerly
 winds the days before, and possibly killed when forced to
surface for air at a small opening in the ice," scientists wrote
in their new study on the phenomenon, published in
 the journal Polar Research.