By taking that one sentence out of context, I can see how one could arrive at this conclusion. But, the rest of the article makes it clear that, with this fish, at least, it happened the other way around.
Now, whales on the other hand, did adapt from living on land to living in the sea. (See: Living whales found with hindlimbs)
Now, whales on the other hand, did adapt from living on land to living in the sea. (See: Living whales found with hindlimbs)
It's too bad that the Tic-Tac finders are not as SURE of their data interpretation as others seem to be.