1.1. The beavers living in Riga Canal have begun breeding and are becoming more active.
1.2. They have become more active by the National Opera House and the Congress Center.
2.1. Previously, when there were only a few beavers in the canal, it was a good thing.
2.2. Their numbers are growing, the situation has become more serious.
3.1. Catching beavers is very complicated, because they are not simple to catch.
4.1. We will see what we can do; we cannot allow them to continue gnawing our trees.
4.2. Trees were sprayed with a special natural substance meant to keep the beavers away.