ladensuijiao

How much live space does a person need? what happen when his  space  lived are not match.  Sciencists are doing experiment on rats  to try to detrimine?  the effect of overcrowed conditions on man. recent study has show that behaviour of rats is greatly affect by space. If rat has an enought live space, they eat well sleep well and produce the yuong well. But if  their live condition became too crowed, their behaviour on even the house??  change absoluterly. they can not spleep and eat well and sad of feel and worry became clear.  the more crowed they are, they more they turn to bite each other and even kill each other.  less and tere for population  and violent directly related. is this  for human sociaty well  is other secies  but nessessary for human suvive. they are intersteing questions