A husband and wife in Raleigh raise large and colorful koi. Monday, July 7th, was National Koi Day, in honor of that unique Japanese fish.

This is the amusing moment a black swan appeared to feed a school of koi carp in a pond in China. Shen Xin and his family were strolling through a park when they saw the waterfowl surrounded by hungry ...

The venture, privately funded to start, is now run by the University of Arizona. And today, scientists there are quietly ...