Four Species

On the Origin of Species is the famous book by Charles Darwin. It gave evidence for evolution, and suggested what had caused evolution to happen. Its...

The Lynx is a small cat. It is a genus with four species. The four species are in Eurasia, Spain, Canada and America, and do not overlap much. Lynx have...

Macropus. The common name 'kangaroo' is used for the four large species, and there are another 50 species of smaller macropods. The kangaroos are common in...

Scientists used to put 84 to 96 valid species in Hylarana, but they looked at the frogs again. Today, scientists say four species are in Hylarana. Hylarana frogs...

closely at all the frogs in Hylidae. At first, they put four species in Myersiohyla. All four had been in the group Hyla before 2005. The genus is found...

ten living species of skunks in four genera: Conepatus (hog-nosed skunks, four species); Mephitis (the hooded and striped skunks, two species) and Spilogale...

Blattodea. There are 4,000 species. About 30 species invade human homes. This is less than 1% of all the cockroach species. Four species are pests. The families...

at the Hylidae again. Before 2005, the four species in this genus were in the genus Hyla. There are four species in this genus: Faivovich, Julián; Haddad...

The gorals are four species in the genus Nemorhaedus or Naemorhedus. They are small ungulates with a goat-like or antelope-like appearance. The original...

The Alpaca (Vicugna pacos) is one of the four species of South American camelid, and they are domesticated. It resembles a small llama in superficial appearance...

Rhyacotritonidae. They live in the Pacific Northwest. The genus is divided into four species Cascade Torrent Salamander (Rhyacotriton cascadae) Columbia Torrent Salamander...

genus of four species of small, spotted wild cats found in Asia. They are typically forest-dwelling. Most are able to swim well; some species are actually...

Spectacled Cobra is a species of the genus Naja found in the Indian subcontinent and a member of the "big four", the four species which inflict the most...

The four-horned antelope (Tetracerus quadricornis) is a bovine even-toed ungulate. It is also called by its Hindi name chousingha. It is different from...

Ordovician period. Although only four marine species survive, all of them horseshoe crabs, there are over 77,000 species of air-breathing chelicerates,...

Ugni is a genus of plants of the myrtle family (Myrtaceae). Four species belong to this genus, all from western America. They are small evergreen shrubs...

much wider distribution. Now there are two subfamilies with four species. With only four species, it is the fourth-smallest family in the Carnivora, and one...

Thornmint. There are a number of species within this genus, including the endangered species Acanthomintha duttonii. All four thornmints are native to the...

dormouse (Graphiurus ocularis) is a species of rodent in the Gliridae family, and one of the four Dormouse species which are endemic to South Africa. The...

pelicans. They mainly occur in the tropics. There are four living species. Three of the species are common, the fourth is rarer, and listed as near-threatened...