[Always Right]

Apparently, they used to to only prosper in colder environments.

I am not sure prosper is the right word.

[Red Badger]

“Prosper” and “only” should swap places. Another case of “The Wandering Only”............

[KeyesPlease]

The article clearly indicates that they are able to cope despite the changes in their environment. Those that are not able to cope, such as the Dutch ones, will become less and less visible as the temperature changes.