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There are 84 mammal species (with two uncertain) recorded in Sweden according to the IUCN Red List. Two are endangered, one is vulnerable as well now extinct, and four are near threatened. The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature:
Two complex chimpanzee blood group systems, V-A-B-D and R-C-E-F systems, proved to be counterparts of the human MNS and Rh blood group systems, respectively. Two blood group systems have been defined in Old World monkeys: the Drh system of macaques and the Bp system of baboons, both linked by at least one species shared by either of the blood group systems.
The only endemic fish in Sweden is the critically endangered freshwater Coregonus trybomi, still surviving in only a single lake. [14] Amphibians found in Sweden include eleven species of frogs and toads and two species of newt, while reptiles include four species of snake and three species of lizard. They are all protected under the law. [15]
List of mammals of Sweden; Meara stichopi This page was last edited on 30 October 2021, at 06:15 (UTC). Text is available under the Creative Commons ...
The venous flow of blood runs back parallel to the arteries. [109] In some species, there are veins isolated from the arteries under the capsule in the cortex, which in humans are called stellate veins. These veins flow into the interlobular veins. [110] The renal portal system is absent in mammals, [111] with the exception of monotremes. [112]
In 1997, the classification of mammals was revised by Malcolm C. McKenna and Susan K. Bell. [10] The Classification of Mammals Above the species level, here referred to as the "McKenna/Bell classification", is a comprehensive work on the systematics, relationships, and occurrences of all mammal taxa, living and extinct, down through the rank of ...
Cetartiodactyla is a large order of hoofed mammals, the even-toed ungulates, and aquatic mammals, cetaceans. Cetacea was found to be nested within "Artiodactlya" and has now been moved into that order, whose name is now Cetartiodactyla. [2] Even-toed ungulates are found nearly world-wide, although no species are native to Australia or Antarctica.
[2] [3] Nearly every species of mammal has teats; except for monotremes, egg-laying mammals, which instead release milk through ducts in the abdomen. In only a handful of species of mammals, certain bat species, is milk production a normal male function. Galactopoiesis is the maintenance of milk production. This stage requires prolactin.