Topic: tumbling

Tumbling is a fancy breed phenotype in domestic pigeons maintained by selective breeding, and it may take different in different sub-breeds. Roughly, it can be defined as the backward somersaults where the pigeon rotates around its neck-to-tail axis during flight. During development following flight onset, they spontaneously start manifesting tumbling, and over time, the tumbling phenotype gets consolidated in such a way that functional losses can emerge such as loss of flight. With its spontaneous early developmental appearance, and pronounced nature with aging, we proposed a corollary betwee