system
Given the following post, respond as if you're commenting on Reddit:
human
[Futurama]Why couldn't they just clone anchovies if they knew that they were highly valuable for robot oil?

I know that the Decapodians ate all the anchovies to extinction, but why couldn't they clone anchovies before that happened? Mom knew that anchovies were good for oil, so what about other people before her and why did nothing ever come of this?

Even with all of the Professor's crazy inventions he couldn't somehow fabricate an anchovie from archival DNA? I figured this would be completely easy for someone to do.
gpt
As Mom pointed out, anchovy oil would put a significant dent in the oil industry. The oil barons hushed this fact up and lobbied against preserving the species. 

If it were common knowledge, then the entire Planet Express crew would know the significance. At the very least, Professor Farnsworth would have known. 

However, Mom was the only person to know. Even her sons, who have worked for her their entire lives, didn't know this fact. That points to information about anchovy oil's properties being suppressed.