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Ursus (mammal)
''Ursus'' is a genus in the family Ursidae (bears) that includes the widely distributed brown bear, the polar bear, the American black bear, and the Asian black bear. The name is derived from the Latin ''ursus'', meaning ''bear''. Taxonomy and systematics Extant species A hybrid between grizzly bears and polar bears has also been recorded. Known commonly as a pizzly, prizzly, or grolar bear, the official name is simply " grizzly–polar bear hybrid". Fossils * †'' Ursus deningeri'' Richenau, 1904 * †'' Ursus dolinensis'' (Garcia & Arsuaga, 2001) * †'' Ursus etruscus'' Cuvier, 1823 * †'' Ursus ingressus'' Rabeder, Hofreiter, Nagel & Withalm 2004 * †'' Ursus kudarensis'' Baryshnikov, 1985 * †'' Ursus minimus'' (Devèze & Bouillet, 1827) * †'' Ursus pyrenaicus'' (Depéret, 1892) * †'' Ursus rossicus'' Borissiak, 1930 * †'' Ursus savini'' (Andrews, 1922) * †'' Ursus sackdillingensis'' Heller, 1955 * †'' Ursus spelaeus'' Rosenmüller, 1794 * †' ... [...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] |
Ursus Americanus
The American black bear (''Ursus americanus''), or simply black bear, is a species of medium-sized bear which is endemic to North America. It is the continent's smallest and most widely distributed bear species. It is an omnivore, with a diet varying greatly depending on season and location. It typically lives in largely forested areas; it will leave forests in search of food and is sometimes attracted to human communities due to the immediate availability of food. The International Union for Conservation of Nature (IUCN) lists the American black bear as a least-concern species because of its widespread distribution and a large population, estimated to be twice that of all other bear species combined. Along with the brown bear (''Ursus arctos''), it is one of the two modern bear species not considered by the IUCN to be globally threatened with extinction. Taxonomy and evolution The American black bear is not closely related to the brown bear or polar bear, though all three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dall Island
Dall Island is an island in the Alexander Archipelago off the southeast coast of Alaska, just west of Prince of Wales Island and north of Canadian waters. Its peak elevation is above sea level. Its land area is , making it the 28th largest island in the United States. Dall is used economically for fishing and limestone quarrying. Population and demographics The 2000 census recorded 20 persons living on the island. The Haida are known to have inhabited coastal caves on the island two to three thousand years ago. History Dall Island was first called "Quadra," after Juan Francisco de la Bodega y Quadra, until 1879, when it was renamed in honor of naturalist William H. Dall. The island was also considered part of Prince of Wales Island as recently as 1903. During the maritime fur trade era, harbors on southeast Dall Island, collectively known as Kaigani, were among the most popular sites for trade between fur trading ships and the Kaigani Haida. Cape Muzon, the southernm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas Bear
The Atlas bear or North African bear (''Ursus arctos crowtheri'') was a population (or populations) of brown bears native to North Africa that became extinct in historical times. Range The Atlas bear was Africa's only native bear sub-species that survived into modern times. Once inhabiting the Atlas Mountains and neighbouring areas, from Morocco to Libya, the animal is now thought to be extinct. Description The Atlas bear was brownish-black in colour and lacked a white mark on the muzzle. The fur was long and was reddish-orange on the underparts. The muzzle and claws were shorter than those of the American black bear, though it was stouter and thicker in body. The Atlas bear was said to have been long and weighed up to . Genetics A mitochondrial DNA study of bones of Atlas bears ranging in age from 10,000 to 800 years Before Present found that the specimens belonged to two distinct clades: one, referred to as "Clade V", was indistinguishable from brown bears found in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Grizzly Bear
The California grizzly bear (''Ursus arctos californicus''), also known as the California brown bear, California golden bear, or chaparral bear, is an extinct population of the brown bear, generally known (together with other North American brown bear populations) as the grizzly bear. "Grizzly" could have meant "grizzled" that is, with golden and grey tips of the hair or "fear-inspiring" (as a phonetic spelling of "grisly"). Nonetheless, after careful study, naturalist George Ord formally classified it in 1815 – not for its hair, but for its character – as ''Ursus horribilis'' ("terrifying bear"). Genetically, North American brown bears are closely related; in size and coloring, the California grizzly bear was much like the Kodiak bear of the southern coast of Alaska. The grizzly became a symbol of the Bear Flag Republic, a moniker that was attached to the short-lived attempt by a group of U.S. settlers to break away from Mexico in 1846. Later, this rebel flag became the basis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamchatka Brown Bear
The Kamchatka brown bear (''Ursus arctos beringianus''), also known as the Far Eastern brown bear, is a subspecies of brown bear native to the Russian Kamchatka Peninsula. Description The Kamchatka brown bear is the biggest brown bear in Eurasia, with a body length of to tall on hind legs, and a weight up to at least . It is about the size of the Kodiak bear; however, the skull is broader than that of the Ussuri brown bear, and compared to that of the Kodiak bear, the breadth of the skull is much greater in proportion to its length, the anterior narial opening is much shorter, and the molars differ in relative size and form. The greatest skull length for males is , and they are wide, while the skulls of females measure in length and in width. Fur colour is predominantly dark brown with a violet tint. Light coloured individuals are rarely encountered. Distribution It is native to the Anadyrsky District, the Kamchatka Peninsula, Karaginskiy Island, the Kuril Islands, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Siberian Brown Bear
The East Siberian brown bear (''Ursus arctos collaris'') is a population or subspecies of brown bear which ranges from eastern Siberia, beginning at the Yenisei river, north to the Arctic Circle, as far as Trans-Baikaliya, the Stanovoy Range, the Lena River, Kolyma and generally throughout Yakutia and the Altai Mountains. The subspecies is also present in northern Mongolia, northern Xinjiang, and eastern Kazakhstan. Size East Siberian bears are intermediate in size to Eurasian brown bears and Kamchatka brown bears, though large individuals can attain the size of the latter. Their skulls are invariably larger than those of Eurasian brown bears and are apparently larger than those of Kamchatka brown bears. Adult males have skulls measuring in length, and wide at the zygomatic arches. They have long, dense and soft fur which is similar in colour to that of Eurasian brown bears, though darker coloured individuals predominate. Taxonomic history Originally, Cuvier's trinomia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Brown Bear
The Eurasian brown bear (''Ursus arctos arctos'') is one of the most common subspecies of the brown bear, and is found in much of Eurasia. It is also called the European brown bear, common brown bear, common bear, European bear, and colloquially by many other names. The genetic diversity of present-day brown bears (''Ursus arctos'') has been extensively studied over the years and appears to be geographically structured into five main clades based upon analysis of the mtDNA. Description The Eurasian brown bear has brown fur, which ranges from yellowish-brown to dark brown, red-brown, and almost black in some cases; albinism has also been recorded. The fur is dense to varying degrees and the hair can grow up to in length. The head normally is quite round and has relatively small rounded ears, a wide skull, and a mouth equipped with 42 teeth, including predatory teeth. It has a powerful bone structure and large paws equipped with claws that can grow up to in length. The weigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louisiana Black Bear
The Louisiana black bear (''Ursus americanus luteolus''), one of 16 subspecies of the American black bear, is found in parts of Louisiana, mainly along the Mississippi River Valley and the Atchafalaya River Basin. It was classified as 'threatened' under the U.S. Endangered Species Act from 1992–2016. The validity of this subspecies has been repeatedly debated. Description The subspecies does not have a substantially different appearance than the nominate ''U. americanus americanus'', but the skull is relatively long, narrow and flat and the molars are proportionately large. The fur color is usually black, but a cinnamon phase is known to exist. Distribution and habitat The Louisiana black bear historically occurred in Louisiana, Mississippi, East Texas and Arkansas. Four areas are currently known to have populations of the black bear: * St. Mary Parish and Iberia Parish in south Louisiana, * Pointe Coupee Parish in central Louisiana, *the Richard K. Yancey Wildlife Managemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kermode Bear
The spirit bear, sometimes called the Kermode bear (''Ursus americanus kermodei''), is a subspecies of the American black bear and lives in the Central and North Coast regions of British Columbia, Canada. It is the official provincial mammal of British Columbia and symbol of Terrace, British Columbia. While most Kermode bears are black, between 100 and 500 fully white individuals exist. The white variant is known as spirit bear, and is most common on three islands in British Columbia ( Gribbell, Princess Royal, and Roderick), where they make up 10–20% of the Kermode population. Spirit bears hold a prominent place in the oral traditions of the indigenous peoples of the area. They have also been featured in a National Geographic documentary and in the BBC TV series Planet Earth III. Description The Kermode bear was named after Frank Kermode, former director of the Royal B.C. Museum, who researched the subspecies and was a colleague of William Hornaday, the zoologist wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newfoundland Black Bear
The Newfoundland black bear (''Ursus americanus hamiltoni'') is a morphologically distinct subspecies of the American black bear, which is endemic to the island of Newfoundland in Atlantic Canada. The Newfoundland black bear ranges in size from and averaging . It also has one of the longest hibernation Hibernation is a state of minimal activity and metabolic reduction entered by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is mos ... periods of any bear in North America. References {{Taxonbar, from=Q3769927 Newfoundland black bear Endemic fauna of Newfoundland (island) Endemic fauna of Canada Mammals of Canada Newfoundland black bear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida Black Bear
The Florida black bear (''Ursus americanus floridanus'') is a subspecies of the American black bear that has historically ranged throughout most of Florida and the southern portions of Georgia (U.S. state), Georgia, Alabama, and Mississippi. The large black-furred bears live mainly in forested areas and have seen recent habitat reduction throughout the state due to increased human development, as well as habitat modifications within bear habitat. Description Physical Florida black bears are typically large-bodied with shiny black fur, a short tail, and many have brown fur on their muzzles. Pelage color is consistently black in Florida, but summer molting of the guard hairs may cause them to look brown. A white chest patch, called a blaze, is found in about 30% of the population. It is Florida's second largest terrestrial mammal (behind the American bison that are still found in Paynes Prairie Preserve State Park), with an average male weight of ; the largest known male weighed a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
