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Super Weaner
A super weaner (also super-weaner or superweaner) is an exceptionally large elephant seal at weaning age. Super weaners may reach their large sizes by stealing milk from nursing female elephant seals or by being adopted by an additional mother elephant seal. Background Elephant seals have an abrupt weaning process, in which the weaned juvenile seal does not receive assistance from its parents in finding food. The postweaning period is important for the seals' development, with a high mortality rate. Phenomenon A super weaner, an elephant seal at weaning age which obtains milk from multiple females, can weigh . A typical elephant seal at the same age weighs between and . While most mother elephant seals will bite weaned elephant seals that attempt to suckle, some will allow it for unknown reasons; some super weaners also obtain the additional milk through theft. Instances A study carried out on Año Nuevo Island in California between 1972 and 1977 observed the existence o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juvenile Elephant Seal During Molt
Juvenile may refer to: In general *Juvenile status, or minor (law), prior to adulthood *Juvenile (organism) Music *Juvenile (rapper) (born 1975), stage name of American rapper Terius Gray *''Juveniles'', a 2020 studio album by the band Kingswood *" The Juvenile", a song by Ace of Base Film * ''Juvenile'' (2000 film), Japanese film * ''Juvenile'' (2017 film), U.S. film Sports * Juvenile (greyhounds), a greyhound competition *A two-year-old horse in horse racing terminology Other *Juvenile particles, a type of volcanic ejecta See also * Children's literature * Children's clothing *Juvenile novel **Any of "Heinlein juveniles" *Juvenile delinquency *Juvenile hall (juvenile detention center) * Juvie (other) *Juvenilia Juvenilia are literary, musical or artistic works produced by authors during their youth. Written juvenilia, if published at all, usually appear as retrospective publications, some time after the author has become well known for later works. Bac ..., wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eating
Eating (also known as consuming) is the ingestion of food. In biology, this is typically done to provide a heterotrophic organism with energy and nutrients and to allow for growth. Animals and other heterotrophs must eat in order to survive – carnivores eat other animals, herbivores eat plants, omnivores consume a mixture of both plant and animal matter, and detritivores eat detritus. Fungi digest organic matter outside their bodies as opposed to animals that digest their food inside their bodies. For humans, eating is more complex, but is typically an activity of daily living. Physicians and dieticians consider a healthful diet essential for maintaining peak physical condition. Some individuals may limit their amount of nutritional intake. This may be a result of a lifestyle choice: as part of a diet or as religious fasting. Limited consumption may be due to hunger or famine. Overconsumption of calories may lead to obesity and the reasons behind it are myriad, however, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buoyancy
Buoyancy (), or upthrust, is the force exerted by a fluid opposing the weight of a partially or fully immersed object (which may be also be a parcel of fluid). In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus, the pressure at the bottom of a column of fluid is greater than at the top of the column. Similarly, the pressure at the bottom of an object submerged in a fluid is greater than at the top of the object. The pressure difference results in a net upward force on the object. The magnitude of the force is proportional to the pressure difference, and (as explained by Archimedes' principle) is equivalent to the weight of the fluid that would otherwise occupy the submerged volume of the object, i.e. the Displacement (fluid), displaced fluid. For this reason, an object with average density greater than the surrounding fluid tends to sink because its weight is greater than the weight of the fluid it displaces. If the objec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Developmental Biology
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia (). With few exceptions, animals consume organic material, breathe oxygen, have myocytes and are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million living animal species have been described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. Animal body lengths range from to . They have complex ecologies and interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology, and the study of animal behaviour is known as ethology. The animal kingdom is divided into five major clades, namely Porifera, Ctenophora, Placozo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Mammals
Marine mammals are mammals that rely on marine ecosystems for their existence. They include animals such as cetaceans, pinnipeds, sirenians, sea otters and polar bears. They are an informal group, unified only by their reliance on marine environments for feeding and survival. Marine mammal adaptation to an aquatic lifestyle varies considerably between species. Both cetaceans and sirenians are fully aquatic and therefore are obligate water dwellers. Pinnipeds are semiaquatic; they spend the majority of their time in the water but need to return to land for important activities such as mating, breeding and molting. Sea otters tend to live in kelp forests and estuaries. In contrast, the polar bear is mostly terrestrial and only go into the water on occasions of necessity, and are thus much less adapted to aquatic living. The diets of marine mammals vary considerably as well; some eat zooplankton, others eat fish, squid, shellfish, or seagrass, and a few eat other mammals. Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mirounga
Elephant seals or sea elephants are very large, oceangoing earless seals in the genus ''Mirounga''. Both species, the northern elephant seal (''M. angustirostris'') and the southern elephant seal (''M. leonina''), were hunted to the brink of extinction for lamp oil by the end of the 19th century, but their numbers have since recovered. They can weigh up to . Despite their name, elephant seals are not closely related to elephants, and the large proboscis or trunk that males of the species possess is an example of convergent evolution. The northern elephant seal, somewhat smaller than its southern relative, ranges over the Pacific coast of the U.S., Canada and Mexico. The most northerly breeding location on the Pacific Coast is at Race Rocks Marine Protected Area, at the southern tip of Vancouver Island in the Strait of Juan de Fuca. The southern elephant seal is found in the Southern Hemisphere on islands such as South Georgia and Macquarie Island, and on the coasts of New Z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UC Santa Cruz
The University of California, Santa Cruz (UC Santa Cruz or UCSC) is a public land-grant research university in Santa Cruz, California, United States. It is one of the ten campuses in the University of California system. Located in Monterey Bay, on the edge of the coastal community of Santa Cruz, the main campus lies on of rolling, forested hills overlooking the Pacific Ocean. As of Fall 2024, its ten residential colleges enroll some 17,940 undergraduate and 1,998 graduate students. Satellite facilities in other Santa Cruz locations include the Coastal Science Campus and the Westside Research Park and the Silicon Valley Center in Santa Clara, along with administrative control of the Lick Observatory near San Jose in the Diablo Range and the Keck Observatory near the summit of Mauna Kea in Hawaii. Founded in 1965, UC Santa Cruz uses a residential college system consisting of ten small colleges that were established as a variation of the Oxbridge collegiate university system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Behavioral Ecology And Sociobiology
''Behavioral Ecology and Sociobiology'' is a peer-reviewed scientific journal covering quantitative, empirical, and theoretical studies in the field of analysis of animal behavior at the levels of the individual, population, and community. Abstracting and indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 2.980. References External links {{Official website, https://link.springer.com/journal/265 Ecology journals Ethology journals Academic journals established in 1976 Springer Science+Business Media academic journals Monthly journals English-language journals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entertainment Weekly
''Entertainment Weekly'' (sometimes abbreviated as ''EW'') is an American online magazine, digital-only entertainment magazine based in New York City, published by Dotdash Meredith, that covers film, television, music, Broadway theatre, books, and popular culture. The print magazine debuted on February 16, 1990, in New York City, and ceased publication in 2022. Different from celebrity-focused publications such as ''Us Weekly'', ''People (magazine), People'' (a sister magazine to ''EW''), and ''In Touch Weekly'', ''EW'' primarily concentrates on entertainment media news and critical reviews; unlike ''Variety (magazine), Variety'' and ''The Hollywood Reporter'', which were primarily established as trade magazines aimed at industry insiders, ''EW'' targets a more general audience. History Formed as a sister magazine to ''People'', the first issue of ''Entertainment Weekly'' was published on February 16, 1990. Created by Jeff Jarvis and founded by Michael Klingensmith, who serve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Geographic
''National Geographic'' (formerly ''The National Geographic Magazine'', sometimes branded as ''Nat Geo'') is an American monthly magazine published by National Geographic Partners. The magazine was founded in 1888 as a scholarly journal, nine months after the establishment of the society, but is now a popular magazine. In 1905, it began including pictures, a style for which it became well known. Its first color photos appeared in the 1910s. During the Cold War, the magazine committed itself to present a balanced view of the physical and human geography of countries beyond the Iron Curtain. Later, the magazine became outspoken on environmental issues. Until 2015, the magazine was completely owned and managed by the National Geographic Society. Since 2015, controlling interest has been held by National Geographic Partners. Topics of features generally concern geography, history, nature, science, and world culture. The magazine is well known for its distinctive appearance: a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Sciences
Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, origin, evolution, and distribution of life. Central to biology are five fundamental themes: the cell as the basic unit of life, genes and heredity as the basis of inheritance, evolution as the driver of biological diversity, energy transformation for sustaining life processes, and the maintenance of internal stability (homeostasis). Biology examines life across multiple levels of organization, from molecules and cells to organisms, populations, and ecosystems. Subdisciplines include molecular biology, physiology, ecology, evolutionary biology, developmental biology, and systematics, among others. Each of these fields applies a range of methods to investigate biological phenomena, including observation, experimentation, and mathematical modeling. Modern biology is grounded in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
