Animals used in research are often hidden from sight and objectified, or "de-animalized."
Melanie D.G. Kaplan writes about this issue in her book "Lab Dog," sharing a personal anecdote:
We woke in Boston before daybreak as usual, and Hammy — my beagle, who was once a lab dog used in research — stretched, a squeak escaping from his yawn.
Kaplan met with Larry Carbone, a visiting fellow at the Harvard Law School Animal Law and Policy Program, at Boston Common, a historic space for public assembly.
Boston Common has been an important space for public assembly for centuries.
Author's summary: Euphemisms hide the truth about lab research on animals.