I don't know how many mice and rats are used in every single country but i do know the statistics for the UK in 2005 and 2004: 1,910,110 mice, 464,727 rats and 37,475 other rodents were used in 2004. In 2005 :1,955,035 mice, 414,335 rats and 40,856 other rodents.
I also know an estimated amount of rats and mice used in the USA which is 15-20 million.
Animal testing needs to be stopped.
Rats/mice.
Rats,mice and rabbits and many other small animals.:(
rats, mice, rabbits and guinea pigs
rats and mice are the top two
Mice and rats are both rodents and belong to the same family, Muridae. They are closely related and share many similarities in their physical characteristics and behavior.
Rats and mice are both rodents and belong to the same family called Muridae. They are closely related and share many similarities in their physical characteristics and behavior.
Yes, mice and rats are both rodents and are related to each other. They belong to the same family, Muridae, but are different species.
Neither. Like mice and rats, they are rodents, but they are only distantly related to mice and rats.
Rats kill mice. When I got my rat a stuffed mouse to play with, it started ripping it to shreds. I was testing to see if I should get a mouse. Apparently not... But, anyways, you don't have to train your rats. They have their instinct.
Mice and Rats are rodents.
mice like cheese. rats dont.
Mice and rats are natural enemies of each other. Putting them together would result in the rat killing the mouse.