Sometimes scientists need to make their research subjects’ lives harder. No matter how much affection they may feel for those flatworms or fish or pigeons, there are certain things they can only learn by forcing the animals to use more energy. But for animals living in the wild, this can be tricky. Now scientists studying rodents in Eastern Europe say they’ve found a convenient way to do it: just give the animals a quick shave.
Paulina SzafraÅska, at theÂ Mammal Research Institute of the Pol