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Bog Lemming
''Synaptomys'' is a genus of North American lemmings. These animals live in wet forested and open areas. They are small, cylindrical rodents with large heads and short ears, legs, and tails. They eat green vegetation such as grasses and sedges. They are often found in colonies. Systematics The genus ''Synaptomys'' comprises two extant species and 10 extinct species. ''S. borealis'' is sometimes placed in the genus ''Mictomys''. Extant species * Northern bog lemming The northern bog lemming (''Synaptomys borealis'') is a small North American lemming. It is one of two species in the genus ''Synaptomys'', the other being the southern bog lemming, southern bog lemming ''(Synaptomys cooperi)''. Very little info ... - ''S. borealis'' (Richardson, 1828) * Southern bog lemming - ''S. cooperi'' Baird, 1858 Extinct species * Florida bog lemming (''S. australis'' Simpson 1928) * Bunker's bog lemming (''S. bunkeri'' Hibbard 1939) * Morgan's bog lemming (''S. morgani'' Martin et al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch (geology), epoch in the geologic time scale that extends from 5.33 to 2.58See the 2014 version of the ICS geologic time scale million years ago (Ma). It is the second and most recent epoch of the Neogene Period in the Cenozoic, Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian Stage, which lasted from 2.59 to 1.81 Ma, and is now included in the Pleistocene. As with other older geologic periods, the Stratum, geological strata that define the start and end are well-identified but the exact dates of the start a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Bog Lemming
The southern bog lemming (''Synaptomys cooperi'') is a small North American lemming. Its range overlaps with the other species in genus ''Synaptomys'', the northern bog lemming, in southeastern Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ..., but extends farther south. Description Southern bog lemmings are covered with thick, brownish fur on their backs that ranges in color from reddish to dark brown and have a grizzled appearance. The belly is silver-gray. The shallow-grooved upper incisors and a relatively shorter tail distinguish this species from other rodents. They have relatively large heads and small eyes. The ears barely show through puffy head fur. Southern bog lemmings have four toes and one small, nailed thumb on the forefeet and five toes on the hind feet. Fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spencer Fullerton Baird
Spencer Fullerton Baird (; February 3, 1823 – August 19, 1887) was an American naturalist, ornithologist, ichthyologist, Herpetology, herpetologist, and museum curator. Baird was the first curator to be named at the Smithsonian Institution. He eventually served as assistant Secretary of the Smithsonian from 1850 to 1878, and as Secretary from 1878 until 1887. He was dedicated to expanding the natural history collections of the Smithsonian which he increased from 6,000 specimens in 1850 to over 2 million by the time of his death. He also served as the U.S. United States Fish Commission, Commissioner of Fish and Fisheries from 1871 to 1887 and published over 1,000 works during his lifetime. Early life and education Spencer Fullerton Baird was born in Reading, Pennsylvania in 1823. His mother was a member of the prominent Philadelphia Biddle family; he was a nephew of Speaker of the Pennsylvania Senate Charles B. Penrose and a first cousin, once removed, of U.S. Senator Boies Penr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synaptomys Cooperi
The southern bog lemming (''Synaptomys cooperi'') is a small North American lemming. Its range overlaps with the other species in genus ''Synaptomys'', the northern bog lemming, in southeastern Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ..., but extends farther south. Description Southern bog lemmings are covered with thick, brownish fur on their backs that ranges in color from reddish to dark brown and have a grizzled appearance. The belly is silver-gray. The shallow-grooved upper incisors and a relatively shorter tail distinguish this species from other rodents. They have relatively large heads and small eyes. The ears barely show through puffy head fur. Southern bog lemmings have four toes and one small, nailed thumb on the forefeet and five toes on the hind feet. Fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synaptomys Borealis
The northern bog lemming (''Synaptomys borealis'') is a small North American lemming. It is one of two species in the genus ''Synaptomys'', the other being the southern bog lemming ''(Synaptomys cooperi)''. Very little information is available about this species' life as they are hard to find and study. The northern bog lemming is a small, reddish-brown rodent with a short tail, and distinct markings on their upper teeth. These markings, along with having four pairs of teats, distinguishes this species from the southern bog lemming. The northern bog lemming lives in wet habitats in North America and is omnivorous, eating herbaceous material and invertebrates. They are thought to be extremely sociable animals and sexually mature at around 6 weeks old. Predators include most medium to larger sized carnivorous and omnivorous mammals that eat smaller mammals. The northern bog lemming is listed as a species of "Least Concern" by the IUCN Red List and is considered threatened or of con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synaptomys Australis
''Synaptomys australis'', the Florida bog lemming, is an extinct species of bog lemming that occurred in Florida during the Late Pleistocene. Taxonomy Although the bog lemmings are not indigenous to Florida at the present time, remains are known there from the Pleistocene, indicating the range of these normally cold-adapted rodents extended further south during glaciation events. The Florida bog lemming was described from a lower jaw collected from Pleistocene deposits in 1928. Its taxonomic status as a full species has been questioned however, with some researchers considering it a prehistoric race of the southern bog lemming The southern bog lemming (''Synaptomys cooperi'') is a small North American lemming. Its range overlaps with the other species in genus ''Synaptomys'', the northern bog lemming, in southeastern Canada Canada is a country in North Amer .... Description The Florida bog lemming was slightly larger than the living southern bog lemming. It went e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the south and west by the Pacific Ocean. The region includes Middle America (Americas), Middle America (comprising the Caribbean, Central America, and Mexico) and Northern America. North America covers an area of about , representing approximately 16.5% of Earth's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the list of continents and continental subregions by population, fourth-largest continent by population after Asia, Africa, and Europe. , North America's population was estimated as over 592 million people in list of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's popula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lemming
A lemming is a small rodent, usually found in or near the Arctic in tundra biomes. Lemmings form the subfamily Arvicolinae (also known as Microtinae) together with voles and muskrats, which form part of the superfamily Muroidea, which also includes rats, mice, hamsters and gerbils. A longstanding myth holds that they exhibit herd mentality and jump off cliffs, committing mass suicide. Description and habitat Lemmings measure around in length and weigh around . Lemmings are quite rounded in shape, with brown and black, long, soft fur. They have a very short tail, a stubby, hairy snout, short legs and small ears. They have a flattened claw on the first digit of their front feet, which helps them to dig in the snow. They are herbivorous, feeding mostly on mosses and grasses. They also forage through the snow surface to find berries, leaves, shoots, roots, bulbs, and lichens. Lemmings choose their preferred dietary vegetation disproportionately to its occurrence in their habi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Bog Lemming
The northern bog lemming (''Synaptomys borealis'') is a small North American lemming. It is one of two species in the genus ''Synaptomys'', the other being the southern bog lemming, southern bog lemming ''(Synaptomys cooperi)''. Very little information is available about this species' life as they are hard to find and study. The northern bog lemming is a small, reddish-brown rodent with a short tail, and distinct markings on their upper teeth. These markings, along with having four pairs of teats, distinguishes this species from the southern bog lemming. The northern bog lemming lives in wet habitats in North America and is Omnivore, omnivorous, eating herbaceous material and invertebrates. They are thought to be extremely sociable animals and sexually mature at around 6 weeks old. Predators include most medium to larger sized Carnivore, carnivorous and omnivorous mammals that eat smaller mammals. The northern bog lemming is listed as a species of "Least Concern" by the IUCN Red L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida Bog Lemming
''Synaptomys australis'', the Florida bog lemming, is an extinct species of bog lemming that occurred in Florida during the Late Pleistocene. Taxonomy Although the bog lemmings are not indigenous to Florida at the present time, remains are known there from the Pleistocene, indicating the range of these normally cold-adapted rodents extended further south during glaciation events. The Florida bog lemming was described from a lower jaw collected from Pleistocene deposits in 1928. Its taxonomic status as a full species has been questioned however, with some researchers considering it a prehistoric race of the southern bog lemming The southern bog lemming (''Synaptomys cooperi'') is a small North American lemming. Its range overlaps with the other species in genus ''Synaptomys'', the northern bog lemming, in southeastern Canada Canada is a country in North Amer .... Description The Florida bog lemming was slightly larger than the living southern bog lemming. It went e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mictomys
The northern bog lemming (''Synaptomys borealis'') is a small North American lemming. It is one of two species in the genus ''Synaptomys'', the other being the southern bog lemming ''(Synaptomys cooperi)''. Very little information is available about this species' life as they are hard to find and study. The northern bog lemming is a small, reddish-brown rodent with a short tail, and distinct markings on their upper teeth. These markings, along with having four pairs of teats, distinguishes this species from the southern bog lemming. The northern bog lemming lives in wet habitats in North America and is omnivorous, eating herbaceous material and invertebrates. They are thought to be extremely sociable animals and sexually mature at around 6 weeks old. Predators include most medium to larger sized carnivorous and omnivorous mammals that eat smaller mammals. The northern bog lemming is listed as a species of "Least Concern" by the IUCN Red List and is considered threatened or of con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
