House mice usually live less than one year in the wild, due to a high level of predation and exposure to harsh environments. In protected environments, however, they often live two to three years. The Methuselah Mouse Prize is a competition to breed or engineer extremely long-lived laboratory mice.
https://en.wikipedia.org/wiki/House_Mouse
Bite and Scratch. When running is not an option, mice might bite and scratch to protect themselves. This is especially effective when fighting against other animals of the same size or when cornered. Mice have tiny, sharp teeth that can do a lot of damage and inflict a lot of pain if necessary.
http://animals.mom.me/mice-protect-themselves-4329.html
How Do Mice Protect Themselves? Despite his tiny size and fragile appearance, the mouse has a lot of tricks when it comes time to defending himself. Most of those tricks are for avoidance -- which means protecting himself by either eluding or running away from danger. If that doesn't work, a mouse can be a feisty fighter.
http://animals.mom.me/mice-protect-themselves-4329.html
If the mother stops feeding her young, or if she eats any babies, place her in a separate cage. If the mother is aggressive or does not care for the infants, you will need to feed and care for them yourself. 2. Find a foster mother if the mice are orphans.
http://www.wikihow.com/Care-for-Baby-Mice
Because mice will eat anything they can get their teeth into, they are known as omnivores. Wild mice, as opposed to urban mice, will eat plants and meat, but primarily feed on vegetation. A house mouse, has adapted to urban living. They are evolved to eat just about anything. They look for food scraps in the garbage.
http://www.jcehrlich.com/mice/what-do-mice-eat/
Feeding Baby Mice. 1  1. Prepare formula to feed the mice. 2  2. Use a small syringe, small nursing bottle, or absorbent string for feeding. 3  3. Place small drops of food into the mouth.  4. Feed the mice 1  frequently. 5. Stimulate the babies after feeding so they use the bathroom.  6. Wean the babies after three to four weeks.
http://www.wikihow.com/Care-for-Baby-Mice
The house mouse has been domesticated as the pet or fancy mouse, and as the laboratory mouse, which is one of the most important model organisms in biology and medicine. The complete mouse reference genome was sequenced in 2002.
https://en.wikipedia.org/wiki/House_Mouse
House mouse. The house mouse (Mus musculus) is a small mammal of the order Rodentia, characteristically having a pointed snout, small rounded ears, and a long naked or almost hairless tail. It is one of the most numerous species of the genus Mus.
https://en.wikipedia.org/wiki/House_Mouse
Have you ever wondered what do mice eat? Mice are very opportunistic and voracious eaters. They like to find places to nest that are warm with access to food and nesting materials and that may include your home. Areas mice are especially fond of include wall cavities, attics, kitchens and a variety of other places.
http://www.jcehrlich.com/mice/what-do-mice-eat/
Quick Answer. Mice turn cannibalistic when they are stressed. This is not normal behavior for mice, though maternal cannibalism of babies is much more common than other forms. When babies are cannibalized, they are usually killed by adults beforehand. Cannibalism of dead adults occurs under conditions of starvation and overcrowding.
https://www.reference.com/pets-animals/mice-eat-dead-mice-8999558fa3d92673
why do mice eat themselves
Mice eat themselves under conditions of starvation and overcrowding. Mice eat themselves under the conditions of starvation and overcrowding.