In the past year, 85,000 rats have been trapped in Anticimex electronic traps in Malmö. And during the corona crisis, the rats in Malmö have started to move more than usual in the city.

- When restaurants are closed or have fewer guests, the rats run away. The rats are found where there is food, says Emil Öberg, service manager at Anticimex.

Instead of eating leftovers from restaurants, the rats go to courtyards or other places where there is a large amount of food waste.

- They have an incredibly good sense of smell and they always find food, says Emil Öberg.

Double its weight

Another change is that rats have become larger in recent years.

- Before, we could catch rats that weighed 200 grams. Now most weigh up to 500 grams, says Emil Öberg.

And the fatter rats can be due to us humans.

- In Malmö, the fast food culture is great and as we humans get fatter and eat worse food - so do the rats do the same.

What is the rats' favorite food?

- They love it with the most calories, all with sugar and fat, says Emil Öberg.