The odds of you existing are astronomically low. The BBC certainly knows how to make a commercial.
Source: youtube.com / via: themarysue.com
Eric Idle, one of the founding members of Monty Python, was approached by the BBC to rewrite his classic "Galaxy Song" to have a biology slant. Idle agreed, and also sings the newly minted version in the BBC trailer.
The original song, which appeared in Monty Python's The Meaning Of Life is below.
Source: youtube.com