There are a lot of hot-button questions when it comes to the ethics of scientific research, but the perennial issue of animal testing seems to incite fever-pitched anger on both side of the debate.

Testing products on animals became an industry standard in the cosmetic, chemical, and pharmaceutical industries nearly a century ago. Since that time, it has become clear that these tests cause ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...