Search results
Results from the WOW.Com Content Network
Virginia opossum (Didelphis virginiana). Didelphimorphia is an order of marsupial mammals.Members of this order are called didelphimorphs, or opossums.They are primarily found in South America, though some are found in Central America and Mexico and one, the Virginia opossum, ranges into the United States and Canada.
Skeletons of a human and an elephant. Comparative foot morphology involves comparing the form of distal limb structures of a variety of terrestrial vertebrates.Understanding the role that the foot plays for each type of organism must take account of the differences in body type, foot shape, arrangement of structures, loading conditions and other variables.
Four types of uterine malformations. The uterus is formed during embryogenesis by the fusion of the two paramesonephric ducts (also called Müllerian ducts). This process usually fuses the two Müllerian ducts into a single uterine body but fails to take place in these affected women who maintain their double Müllerian systems.
Didelphis is a genus of New World marsupials. The six species in the genus Didelphis , commonly known as Large American opossums , are members of the opossum order , Didelphimorphia . The genus Didelphis is composed of cat -sized omnivorous species, which can be recognized by their prehensile tails and their tendency to feign death when cornered.
These differences arise because there are few available ranks and many branching points in the fossil record. Within species further units may be recognised. Animals may be classified into subspecies (for example, Homo sapiens sapiens , modern humans) or morphs (for example Corvus corax varius morpha leucophaeus , the pied raven).
There are 107 classes of animals in 33 phyla in this list. However, different sources give different numbers of classes and phyla. For example, Protura, Diplura, and Collembola are often considered to be the three orders in the class Entognatha. This list should by no means be considered complete and authoritative and should be used carefully.
Dr. Laura Purdy, chief medical officer at Wisp, a sexual health care group, says that “uterus didelphys is rare,” only accounting for 8% of the congenital anomalies of the female reproductive ...
This may be a condition with a double cervix and a vaginal partition (v.i.), or the lower Müllerian system fused into its unpaired condition. See Triplet-birth with Uterus didelphys for a case of a woman having spontaneous birth in both wombs with twins. Class IV—Bicornuate uterus (uterus with two horns).