Animal Testing Horror: 20 Screws Driven Into a Monkey’s Skull For illustrative purposes only. Insiders say experimenters tried to conceal devastating surgical mistakes at the University of Minnesota. Take action to help monkeys!  Everett, a monkey caged in a University of Minnesota laboratory, was in severe pain.  According to reports shared with PETA by university insiders, there were numerous red flags. The rhesus macaque was lethargic. One arm was weak, a possible sign of stroke. His hair was thinning rapidly. He vomited. His eyes moved abnormally. He shook his head violently. In a clear sign of a crushing headache, he pressed his head against the bars of his cage again and again, seeking relief.  Roughly 20 metal screws drilled into Everett’s skull sank so deeply they pierced his brain, the result of a botched surgery performed by neuroscience professor Jan Zimmermann, who is not a surgeon.…