An US biology teacher is facing possible disciplinary action after killing and skinning a rabbit in class to show students where their food comes from.

Nampa School District spokeswoman Allison Westfall says the Idaho teacher killed the rabbit in front of 16 students by snapping its neck on November 6 at Columbia High School.

The rabbit was then skinned and cut up in front of the 10th graders. Ms Westfall said the demonstration is not part of the biology curriculum and students who did not want to view the lesson were allowed to leave.

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