Already a classic of ethics.

Singer consistently addressed the right to life of all creatures on earth:

Born in 1946 in Australia, taught for a long time as a professor of bioethics. He is regarded as a
Representatives of the so-called utilitarianism, a flow in philosophical ethics,
which asks for the benefit of actions.

Singer coined in this work to become a buzzword some activists become term "speciesism":

Speciesism [...] is a prejudice or attitude of
Bias in favor of the interests of With
members of one's own species and against the interests of Mitgli
Eder other species. Animal Liberation (1996), 35th

Other writings by Peter Singer:

SINGER, Peter: Animal Liberation. The animal liberation. Rowohlt, Reinbek 1996th
SINGER, Peter: Practical Ethics. Cambridge University Press, Cambridge, 1979; 2nd edition, 1993 (German Practical Ethics. 2nd edition. Reclam, Stuttgart 1994).