The riddle simply says, "10 fish are in a tank ... Let's see if you can spot the hidden animals in this white and blue illustration. The objective of the puzzle is very easy.

Their coloring—metallic blue on top and shimmering silver-white ... Atlantic bluefins are warm-blooded, a rare trait among fish, and are comfortable in the cold waters off Newfoundland and ...

The blue marlin is one of the Museum's largest ever specimens preserved whole in fluid - and an innovative technique will make this enormous fish last. When a blue marlin stranded on a beach in ...