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.
Long-distance Commuting: Traveling 50 or more miles to work. Mega Commuting: Traveling 90 or more minutes and 50 or more miles to work. Mega Commuters in the U.S.: Time and Distance in Defining the Long Commute using the American Community Survey Melanie A. Rapino, Ph.D.ong-distance Commuting: Traveling 50 or more miles to work. Mega Commuting: Traveling 90 or more minutes and 50 or more miles to work. Mega Commuters in the U.S.: Time and Distance in Defining the Long Commute using the American Community Survey Melanie A. Rapino, Ph.D.