Time flies like an arrow. Fruit flies like a yeast.

Side note, this high school bio exercise and dogs in general should be the only "proof" one needs for evolution.

so that is how doctors get god complexes ... undergraduate genetics classes

Non-fruit non-fly

This isn’t entirely true. The fruit flies eat everything that comes out of the fermenting fruit, including the yeast, sugars, and other bacteria. They aren’t specifically after the yeast.

Why do people put the punch line in the title?

Even Reddit learned years ago that it ruins jokes

mold walk

Lord of the flies