Complex sentence: In recent years, the number of Gray Seals has been on the rise in the west, and in Canada there have been calls for a seal cull, however this does not appear to be coming to fruition any time soon.
Split into simpler sentences: In recent years, the number of Gray Seals has been on the rise in the west and in Canada there have been calls for a seal cull. However this does not appear to be coming to fruition any time soon.