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A sexually mature adult axolotl, at age 18–27 months, ranges in length from 15 to 45 cm (6 to 18 in), although a size close to 23 cm (9 in) is most common and greater than 30 cm (12 in) is rare. Axolotls possess features typical of salamander larvae, including external gills and a caudal fin extending from behind the head to the vent.
Rodents make up the largest order of mammals, with over 40% of mammalian species. They have two incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Suborder: Sciurognathi. Family: Muridae (mice, rats, voles, gerbils, hamsters, etc.) Subfamily: Murinae. Genus: Anisomys. Squirrel-toothed rat, Anisomys ...
The axolotl has three pairs of external gills. This type of gill is most commonly observed on the aquatic larva of most species of salamanders, lungfish, and bichirs (which have only one large pair), and are retained by neotenic adult salamanders and some species of adult lungfish.
The origin of most New Guinea fauna is closely linked to Australia. Gondwana began to break up 140 million years ago, and Sahul separated from Antarctica 50 million years ago. As it drifted north, New Guinea moved into the tropics. Throughout Papua New Guinea's geological history there have been many land connections with Australia.
The name "Axolotl" comes from Nahuatl, the Aztec language. One translation of the name connects the Axolotl to Xolotl. The most common translation is "water-dog" . "Atl" for water and "Xolotl" for dog. [14] In the Aztec calendar, the ruler of the day, Itzcuintli ("Dog"), is Mictlantecuhtli, the god of death and lord of Mictlan, the afterlife. [15]
White-tailed deer with unnatural characteristics Appalachia: Queensland Tiger [45] Yarri Large feline Queensland: Thylacine (surviving original populations) [46] [47] [c] Tasmanian tiger. Tasmanian wolf, Thylacinus cynocephalus Carnivorous marsupial Australia. Papua New Guinea
Lake Xochimilco, in a detail from the 1847 Bruff/Disturnell map The Valley of Mexico at the time of the Spanish conquest, c. 1519. Lake Xochimilco (Spanish pronunciation: [sotʃiˈmilko]; Nahuatl languages: Xōchimīlco, pronounced [ʃoːtʃiˈmiːlko] listen ⓘ) is an ancient endorheic lake, located in the present-day Borough of Xochimilco in southern Mexico City.
J.R. Beerbower revived the hypothesis that the horns were involved in respiration during his 1963 description of Diploceraspis, which was a close relative of Diplocaulus. His argument relied on the possibility that the horns supported operculum -like vertical pouches protecting external or internal gills. [ 2 ]