zen passed away just a little bit ago. he was asleep under my neck, then he was gone. i think his heart let out on him.
when i was preparing his body, i noticed bugs moving on him. i took his body to the vet to figure that out. she calls them walking lice. she gave us a spray the cage and surrounding area with and told us to have the rats on lock down for a few days to make sure the lice in the house is starved. she says the walking lice will not be killed off with ivermectin because of the way they work. zen and the others were dosed with ivermectin but i guess it wouldn't have helped. i never heard of bugs on rats that you could actually see! anyway, the reason i mention this is for the other rat train adopters, check your rats. its likely that they have them. i never noticed zen itching. your's may not be itching either. but check them out. if they have the buggies the ivermectin and revolution may not kill them.