Blood is often associated with the color red, but in the animal kingdom, it comes in a surprising range of hues. From the deep blue blood of ... metal that gives it a yellow or greenish tint.

The Boston Red Sox are wearing yellow and light blue jerseys. The jerseys stray from the traditional red and white color scheme for the club and is part of the City Connect program by the MLB.

red or blue alternates on Fridays and the yellow City Connects at home on Saturday. As a result the blues have become far less prominent. The Red Sox will became the latest team to unveil a new ...