Today’s animal testing differs from how it was back in the day. It’s typically done on a specific ingredient rather than a finished product, and there are often regulatory requirements based on ...

Sentient’ asks if science’s aims ever justify harming animals—and ourselves—through the story of a ...

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, ...