Teletubby

Teletubbies (Tubus televisia) are the main superspecies of the PSTUniverse. They work similar to humans and live in groups, but they are more careful with nature and preserve it rather than destroy it. 
Teletubbies became the new dominant species of Earth after the 2006 Mass Extinction, which targeted the majority of the human race and left them in little remaining numbers post-2006.