Yes, my personal pet theory is that something really smart made a 3D printer-like life machine, and then gave it to thousands of other not-so-smart individuals - who then came up with all these crazy and inconsistent life forms on Earth.
Some designed Bengal Tigers, and others designed Aye Ayes.
Because:
- the designer is not that clever,
- the designer likes to play with its creatures,
- the designer is not alone,
- the designer forgot to update its creations,
- or simply because she does not care.