Two species are described in the literature: A. ramidus, which lived about 4. 4 million years ago during the early Pliocene, and A. kadabba, dated to approximately 5. 6 million years ago ( late Miocene ).

Two Bacillus species are considered medically significant: B. anthracis, which causes anthrax, and B. cereus, which causes a foodborne illness similar to that of Staphylococcus.

* Two species of Malagasy Hippopotamus

Two species of hamster belonging to the genus Phodopus, Campbell's dwarf hamster ( Phodopus campbelli ) and the Djungarian hamster ( Phodopus sungorus ), and two of the genus Cricetulus, the Chinese striped hamster ( Cricetulus barabensis ) and the Chinese hamster ( Cricetulus griseus ) have a dark stripe down their heads to their tails.

Two of the three sampled species within Cricetulus represent the earliest split.

Two dwarf species, named Orcinus nanus and Orcinus glacialis, were described during the 1980s by Soviet researchers, but most cetacean researchers are skeptical about their status, and linking these directly to the types described below is difficult.

Two of his works, the first edition of the Species Plantarum ( 1753 ) for plants and the tenth edition of the Systema Naturae ( 1758 ), are accepted as among the starting points of nomenclature ; his binomials ( names for species ) and his generic names take priority over those of others.

Two kinds of lizards, the Mourning Gecko ( Lepidodactylus lugubris ) and Snake-eyed Skink ( Ablepharus boutonii ) are present on Malden, together with brown libellulid dragonfly and large colonies of Sooty Terns and other migratory seabirds ( nineteen species in all ).

Two examples are kamacite and taenite, which are found in iron meteorites ; these species differ by the amount of Ni in the alloy ; kamacite has less than 5 – 7 % nickel and it's a variety of native iron, whereas the nickel content of taenite ranges from 7 – 37 %.

* Two new fossil penguin species found in Peru

Two planarian species have been used successfully in the Philippines, Indonesia, Hawaii, New Guinea, and Guam to control populations of the imported giant African snail Achatina fulica, which was displacing native snails.

Two water molecules are oxidized by four successive charge-separation reactions by photosystem II to yield a molecule of diatomic oxygen and four hydrogen ions ; the electron yielded in each step is transferred to a redox-active tyrosine residue that then reduces the photoxidized paired-chlorophyll a species called P680 that serves as the primary ( light-driven ) electron donor in the photosystem II reaction center.

Two species of Pteranodon are traditionally recognized as valid: Pteranodon longiceps, the type species, and Pteranodon sternbergi.

Two species, P. orogensis and P. orientalis, are not pteranodontids and have been renamed Bennettazhia oregonensis and Bogolubovia orientalis respectively.

Two endangered species of birds are found here: the California least tern and the California clapper rail.

Two categories are at the species level ; two, at the individual level.

* Two different species of three-spined sticklebacks in each of five different lakes

Two uteri usually form initially in a female fetus, and in placental mammals they may partially or completely fuse into a single uterus depending on the species.

Two species are currently recognized, although others have been assigned in the past.

Two other species of small turtles are the American mud turtles and musk turtles that live in an area that ranges from Canada to South America.

Two other species, Bdellovibrio starrii and Bdellovibrio stolpii, have been moved to a separate genus Bacteriovorax.

Two submarines of the United States Navy have been named USS Tang, after the tang, or surgeonfish, especially of the several West Indian species.

( 1984 ) Two new species of Acanthocephalan Parasites of marine fishes from Bay of Bengal off Purri coast Orissa.

:* The Hippopotamus Marsh: Lords of the Two Lands, Volume One ( 1998 )

* Two or more representatives nominated by each of the Member Parties based on the number of votes that Party received at the last set of European Parliament elections, and

Two BNP candidates, Andrew Brons and Nick Griffin, were elected to the European Parliament in 2009.

Two states emerged: West Germany was a parliamentary democracy, a NATO member, a founding member of what since became the European Union and one of the world's largest economies, while East Germany was a totalitarian Communist dictatorship that was a satellite of Moscow.

Brabham won ten of the year's 16 European Formula Two races in his Brabham-Honda.

There was no European Formula Two championship that year, but Brabham won the Trophées de France, a championship consisting of six of the French Formula Two races.

Two major facilities for materials research are currently under construction in Lund: MAX IV, which will be a world-leading synchrotron radiation laboratory and European Spallation Source ( ESS ), a European facility that will be home to the world ’ s most powerful neutron source.

Two further programmes followed on European painters ; Michael Palin and the Ladies Who Loved Matisse ( 2004 ) and Michael Palin and the Mystery of Hammershøi ( 2005 ), about the French artist Henri Matisse and Danish artist Vilhelm Hammershøi respectively.

Two years later, in 1857, the European and North American Railway opened its line from Moncton to nearby Shediac ; this was followed by a line from Moncton to Saint John opening in 1859.

Two 18th century continental European books dealing with a game that may or may not be the one with which we are concerned are mentioned on page 14 of the Spring 1989 Othello Quarterly, and there has been speculation, so far without documentation, that the game has more ancient origins.

Two European sailors, nine men ( immigrants ), ten women and three children were drowned.

Two notable buildings from this time are the Crețulescu Palace, currently housing cultural institutions including UNESCO's European Centre for Higher Education, and the Cotroceni Palace, the current residence of the Romanian President.

* Two new ESA satellites successfully lofted into orbit ( European Space Agency )

Two European Union institutions are also financing members: the European Community and the European Investment Bank.

The Minardi team first competed under that name in the 1980 European Formula Two championship.

Two weeks later, Real Madrid comfortably beat Feyenoord 5 – 0, and eventually won the European Cup that season.

Two plebiscites to join the European Union failed by narrow margins in 1972 and 1994.

Two terrapin species are also found, the native European pond terrapin ( Emys orbicularis ) and the introduced American red-eared slider ( Trachemys scripta ).

Two different Dromaius species were common in Australia before European settlement, and one additional species is known from fossil remains.

Two years later, Bologna tasted a slice of success on the European stage, winning the UEFA Intertoto Cup and playing in the UEFA Cup.

Two European media groups took small stakes.