Me and my girlfriend have been having a discussion for a whole day about whether or not fats are oils. We’ve googled it and the only facts we found is that fats are solids and oils are liquid, we also found that they are the same, we both agreed on that. But she also claims that oils are necessarily plant-based, which I don’t agree with.
She’s studying biology, and knows the chemistry and the proper names for things, while I have less scientific know-how, but know damn well you can use bacon fat as cooking oil. I don’t know if l’m right, moreover, I don’t know how to explain that she is wrong (if she is). Please help.
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[Whale oil](https://en.wikipedia.org/wiki/Whale_oil) didn’t come from plants. One kind of whale oil was used for oiling very precise instruments, like pocket watches. As whales became endangered, there was a search for a replacement oil. Jojoba plants made a very good [substitute for whale oil](https://www.sciencenews.org/article/50-years-ago-jojoba-desert-shrub-help-save-endangered-whales). It just shows how close oils from plants and animals can be.
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