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A mouse, as mentioned in the text.

To use the technique, I first needed some living cells, preferably neurons. Acquiring those was not very pleasant, as they came from the olfactory bulb of the mouse you see above.

Takes a lot mental strength to dissect a living organisms.
Right?
Being a vegetarian, I know how hard it is.😊

The killing is the hardest part. I don't like killing animals. As soon as it's definitely dead, it's easier. I know I can't hurt it anymore so there is less inner conflict.

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