Anesthetized or sedated mice that were cared for by helper mice recovered faster than those without such assistance.

“Prime-Pull Immunization of Mice with a BcfA-Adjuvanted Vaccine Elicits Sustained Mucosal Immunity That Prevents SARS-CoV-2 Infection and Pathology.” The Journal of Immunology 210 (9): 1257–71.

Actions directed toward the mouth or tongue were observed in all cases, and 50 percent of the time the mice were able to successfully pull out the tongue of their unresponsive partner – as if to ...

Mice also pull back their ears and move their whiskers. "This is the first study that has examined facial expressions of pain in non-human animals," says Craig.

Mice also pull back their ears and move their whiskers. "This is the first study that has examined facial expressions of pain in non-human animals," says Craig.