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.
There's obviously no way we can tell you exactly what your road trip cost will be. Road trips are full of variables. But here are three scenarios for a family of four that's considering a 2,000-mile (round-trip) road trip.