(Minecraft Bedrock) Why do not I see wolves?

I felt I traveled through half my world, but I just can't find any wolves! In which biome do they spawn? I always look in the normal spruce forest but also in mixed forests. But unfortunately I will not find anything. I really want to have one or more dogs.

Then go out into the right forest and into the real life.

With a little luck you will find some.

Wolves are found in a biom.

Nehmlich in spruce biom.Du it recognizes ann its darker grass and the trees are fir. In addition, berries grow there.