It is unlikely that all of your mice die suddenly of old age. There must have been disease/virus/bacteria etc that caused the death of the mice. One mouse probably caught it and introduced it to the others. If you had just recently gotten a new mouse and introduced it to the others without quarantine, it could have had an infectious disease that ended up killing all the mice. This illustrates the importance of quarantine when you buy a new mouse. If they had been eating the same food then it may also have been something they had eaten - they could have eaten something poisenous.
The pathogenic DNA from the dead bacteria became active when combined with the DNA in the live bacteria. When injected into the mice, this reactivated DNA caused the disease and the mice died.
Many groups, such as PETA and the EPA are completely against hunting. Hunting actually helps to keep the natural balance healthy. However, overhunting can have a terrible effect on the ecosystem. It can lead to the extinction of a species. Think about it like this, owls, cats, and foxes eat mice, voles, and frogs. Mice voles and frogs eat grass, wheat and insects. If suddenly, all insects died, frogs couldn't eat them, and would starve and go extinct. If forgs died, there's more food for mice and voles, and their population would go up. Eventually, the higher population wouldn't be supported because there isn't enough food, then mice and voles would die off. Then, owls, cats and foxes would starve to death because the frogs, mice and voles are dead. Eventually, it could work its way up to humans. When populations are too high, hunting is good.
One factor that can affect the populations in an ecosystem is that, if an ecosystem had owls with no predators, the owl population would increase and eat all the mice in the ecosystems. The population of the mice would decrease more and more.
it would be in the industrial invirments
yes it would have hair...
I could not find anything that said kerastase oleo caused cancer in mice. It is probably not the best substance for them to eat, but would caused poisoning and not cancer.
yes. they will stop eating suddenly if they are.
give them more food
1 cat
The best age to start handling baby mice is four to five weeks.
No . . . if they were, then they would be called mice!
cats mice rice
no where would they get the mice it would be dead right now
More food is available as grain is harvested.
More food is available as grain is harvested.
Mice can have babies whenever, not just in the spring. A female mouse ovulates every five days, or rather, can get pregnant every five days. Once a female mouse is pregnant, it will take about twenty-days for the baby mice to be born.
Yes mice's is correct for the plural possessive of mice.