Considering several recent papers shows that eliminating evolutionary words and concepts simplifies and improves scientific explanations.
The second paper is an in-depth look at genetic changes associated with the evolution of whales and dolphins. They found a lot of devolution.
Apparently orcas are threatened in an area of Canadian waters. The government has suggested voluntary sanctuaries.
Japan has quit the International Whaling Commission so that it can resume commercial slaughter of leviathans.
If you want your sons and daughters to be well educated about evolution, then hope their biology teachers don’t rely on materials from the Genetic Science Learning Center.