A great ape research ban, or severe restrictions on the use of great apes in research, is currently in place in the Netherlands, New Zealand, the United Kingdom, Sweden, Germany and Austria. These countries have ruled that chimpanzees, gorillas, and orangutans are cognitively so similar to humans that using them as test subjects is unethical. Austria is the only country in the world where experiments on lesser apes, the gibbons, are completely banned too.