57th Hemisphere Hatchlings
From Tardis Wiki, the free Doctor Who reference
The 57th Hemisphere Hatchlings were a hatchling group of a species in a temporarily rewritten timeline of Earth. Rubathon Blue belonged to this group, and mentioned it as part of her personal title.
After the human Ruby Sunday accidentally stepped on a butterfly in Earth's distant past, the evolutionary history of Earth was altered, resulting in her replacement with Rubathon Blue. Following the Fifteenth Doctor's revival of the butterfly, Rubathon Blue's timeline, and by extension the hatchlings, were negated. (TV: Space Babies [+]Loading...["Space Babies (TV story)"])
