"Junior" is one of the most unusual selectively bred chondros in the world, and has the distinction of proving (in 1999) that the calico traits are heritable. He was one of the first patternless brown babies to be hatched in the US. He has proven to be a prolific breeder, with offspring representing both high yellow and melanistic calico forms. Calico Junior was produced by pairing The Computer Chondro with his blue sibling, Aquagirl.