who wrote against animal experimentation with his book animal liberation?

The philosopher who wrote against animal experimentation in the book Animal Liberation is Peter Singer.

Who is Peter Singer?

• Singer is an Australian moral philosopher, best known for his work in utilitarian ethics and animal ethics.

• He argues that the capacity to suffer, not species membership, should determine moral consideration, a stance he uses to criticize both factory farming and animal testing.

About Animal Liberation

• First published in 1975 , Animal Liberation is widely regarded as a foundational text of the modern animal‑liberation movement.

• In the book, Singer exposes the conditions of animals in laboratories and factory farms, challenges the idea of speciesism , and calls for a boycott of products that rely on animal exploitation.

If you want, I can also outline how Singer’s arguments differ from other animal‑rights thinkers (like Tom Regan or Gary Francione).