Well, for example, they are testing mice to help with human diseases, such as type 1 Diabetes. Recently, they turned an ordinary pancreas cell into a cell that produces insulin. A big step. Also, they tested whether they can thaw out cells so they could work in mice, and it worked.
mice sheep
The mice is surrounding the area of food to eat.
No its not illegal,scientists carry out multiple tests.
the Rattus rattus or the black rat
If you are looking for information about PET mice, then there is a great website in the related link :)
Because Mice are mammals, Like humans, so the reaction that the mice have is likely to be like human reactions. It's also safer, because people think that humans are superiour to mice etc. So if something goes wrong it's less likely to be a big 'oh my god! Noo!' type thing.
Yes, they are, nand are not related to any type of bird. They are very much like mice.
Scientists have mapped the whole human genome but are still mapping other species genomes such as mice and worms
Scientists use Mice for experiments because they reproduce rapidly.
In 1981.
Some are. Scientists have found a genetic trait in lab mice that make some prone to homosexual actions while others are heterosexual
because they are easy to breed and fast to breed so they have them when ever they want