Template:POTD/2015-02-05

Picture of the day
Caridoid escape reaction
The caridoid escape reaction of an Antarctic krill allows it to escape predators by flexing its abdomen in a swimming stroke that thrusts it backwards away from danger. It is an innate mechanism in marine and freshwater crustaceans such as lobsters, krill, shrimp and crayfish.Animation: Uwe Kils