Comparison of even-toed ungulate and cetaceans genetic material has shown that the closest living relatives of whales and hippopotamuses is the paraphyletic group Artiodactyla. Dan Graur and Desmond Higgins were among the first to come to this conclusion, and included a paper published in 1994.
Definition of roundâtrip. : a trip to a place and back usually over the same route.
The circumnavigation of Eastern North America by water is known as The Great Loop. Also improperly referred to as the Great Circle Route (see definition of a great circle), the trip varies from 5,000 miles to 7,500 miles depending on the options used....per wikipedia.