PETA has tried to stop a school using animal carcasses to teach children biology.
It claims the practice is cruel and kids should learn from computers instead.
PETA targeted The Blackpool Old Road’s school in Lancashire, UK, after it announced it planned to give children the opportunity to learn about surgery using pigs.
It plans to turn a biology lab into a surgery for one day and students will wear hospital scrubs.
Around 65 students across Britain signed up to take part in the dissection to learn about anatomy.
But PETA says students who are taught using non-animal methods learn as well as or better than their peers who dissect animals.
John Topping, community relations boss at Fylde Coast Academy Trust, which runs the school, said PETA was wrong.
He said: “Schooling should be all about giving young people a range of different and varied learning opportunities so that they can go on to achieve great things in life.”