Jonatha Carr repeatedly asked her professor, 'How does evolution kill black people?', and was unsatisfied by his response that evolution does not 'kill' people.
She then apparently lost her temper, screaming obscenities and assaulting other students and staff, before being dragged out and taken away by police.
The outburst was caught on camera by a number of students, who posted the footage online on sites such as YouTube and Facebook.
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Rant: Jonatha Carr screamed at classmates and staff during a profanity-laden outburst in an evolution class
Footage: Video of the bizarre outburst was posted online by several students who were in the class
The extraordinary incident took place during a class at Florida Atlantic University taught by Stephen Kajiura.
He had been telling students about how peacocks' feathers aid natural selection, when Carr - sitting in the front row - asked her bizarre question about evolution killing black people.
She screamed 'I will kill the f*** out of you', and claimed to 'hate' evolution.
Carr told the professor, 'You are f****** sick' and 'You better shut the f*** up before I f****** kill you.'
Violence: The encounter turned physical when Carr lashed out at the people trying to calm her down
She then stomped around the classroom and struck a male student in the head, daring him to hit her back.
At that point two members of the university staff intervened, managing to immobilise Carr after she had lashed out at them.
Police arrived at the scene after being called by other students, and took her into a squad car, subduing her with a Taser, according to WSVN.
Carr, 24, has now been expelled from the school and is being held in hospital, according to university authorities.
Professor: Stephen Kajiura was shocked by the violence that kicked off without warning in his classroom
Rachel Bustamante, a student who posted video of the incident on the internet, described the outburst as the 'craziest thing I've ever seen'.
Mr Kajiura told the University Press, FAU's student newspaper, that he did not know Carr, but had previously had a civil discussion with her via email.
He described her bizarre behaviour in his class, saying: 'She became increasingly belligerent.
'It was at this point, a highly emotionally charged individual who was no longer capable of responding rationally. She was threatening to kill both me and the students in the class.'
After the outburst, he added, 'Everyone gave up and started texting.'
Read more: http://www.dailymail.co.uk/news/article-2118501/I-kill-f--Students-death-threats-professor-evolution-class.html#ixzz1q6IDXcBF