What are some facts about animal testing?

In tests of potential carcinogens, subjects are given a substance every day for 2 years. Others tests involve killing pregnant animals and testing their fetuses. read more

Some of these are currently being used alongside animal testing. For example, some scientists are using synthetic skin to measure how drugs travel through the skin. Other scientists use human cell cultures to test how drugs work. read more

Wasteful animal testing. Despite the use of over 115 million animals in experiments globally each year, only 46 new medicines were approved in 2017 by the leading drug regulator, the U.S. Food and Drug Administration. Many of these are for rare diseases. read more