Simplify the following text for a Grade 11 native English-speaking person.
Original: People for the Ethical Treatment of Animals ( PETA ) is an American animal rights organization based in Norfolk , Virginia , and led by Ingrid Newkirk , its international president . A non-profit corporation with 300 employees and two million members and supporters , it says it is the largest animal rights group in the world .
Simplified: People for the Ethical Treatment of Animals ( PETA ) is the world 's largest non-profit organization about animal rights .