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Mara (mammal)
Maras, subfamily Dolichotinae, are a group of rodents in the family Caviidae. These large relatives of guinea pigs are common in the Patagonian steppes of Argentina, but also live in Paraguay and elsewhere in South America. There are two extant species, the Patagonian mara of the genus '' Dolichotis'' and the Chacoan mara of the genus '' Pediolagus''. Traditionally this species was also thought to belong to ''Dolichotis''; however, a 2020 study by the American Society of Mammalogists found significant difference between the two mara species to warrant resurrecting the genus ''Pediolagus'' for it. Several extinct genera are also known. Description Maras have stocky bodies, three sharp-clawed digits on the hind feet, and four digits of the fore feet. Maras have been described as resembling long-legged rabbits; while standing, they can also resemble a small ungulate. Patagonian maras can run at speeds up to . The Patagonian species can weigh over in adulthood. The average weig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montehermosan
The Montehermosan age is a period of geologic time (6.8–4.0 Mya (unit), Ma) within the Miocene and Pliocene epochs of the Neogene used more specifically with South American Land Mammal Ages. It follows the Huayquerian and precedes the Chapadmalalan age. References Montehermosan, Miocene life Miocene South America Zanclean Neogene animals of South America {{geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ungulate
Ungulates ( ) are members of the diverse clade Euungulata ("true ungulates"), which primarily consists of large mammals with Hoof, hooves. Once part of the clade "Ungulata" along with the clade Paenungulata, "Ungulata" has since been determined to be a polyphyletic and thereby invalid clade based on molecular data. As a result, true ungulates had since been reclassified to the newer clade Euungulata in 2001 within the clade Laurasiatheria while Paenungulata has been reclassified to a distant clade Afrotheria. Living ungulates are divided into two orders: Perissodactyla including Equidae, equines, rhinoceroses, and tapirs; and Artiodactyla including Bos, cattle, antelope, Sus (genus), pigs, giraffes, camels, Ovis, sheep, deer, and Hippopotamidae, hippopotamuses, among others. Cetaceans such as Whale, whales, Dolphin, dolphins, and Porpoise, porpoises are also classified as artiodactyls, although they do not have hooves. Most terrestrial ungulates use the hoofed tips of their toes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cavies
Caviidae, the cavy family, is composed of rodents native to South America and includes the domestic guinea pig, wild cavies, and the largest living rodent, the capybara. They are found across South America in open areas from moist savanna to thorn forests or scrub desert. This family of rodents has fewer members than most other rodent families, with 19 species in seven genera in three subfamilies. Characteristics With the exception of the maras, which have a more rabbit-like appearance, caviids have short, heavy bodies and large heads. Most have no visible tails. They range in size from the smaller cavies at 22 cm in body length, and 300 grams in weight, up to the capybara, the largest of all rodents at 106 to 134 cm in length, and body weights of 35 to 66 kilograms. Even larger forms existed in the Pliocene, such as '' Phugatherium'', which was about the size of a tapir. They are herbivores, eating tough grasses or softer leaves, depending on species. The de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archive
An archive is an accumulation of historical records or materials, in any medium, or the physical facility in which they are located. Archives contain primary source documents that have accumulated over the course of an individual or organization's lifetime, and are kept to show the history and function of that person or organization. Professional archivists and historians generally understand archives to be records that have been naturally and necessarily generated as a product of regular legal, commercial, administrative, or social activities. They have been metaphorically defined as "the secretions of an organism", and are distinguished from documents that have been consciously written or created to communicate a particular message to posterity. In general, archives consist of records that have been selected for permanent or long-term preservation on the grounds of their enduring cultural, historical, or evidentiary value. Archival records are normally unpublished and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Wings
The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's axial tilt; the width of the tropics (in latitude) is twice the tilt. The tropics are also referred to as the tropical zone and the torrid zone (see geographical zone). Due to the overhead sun, the tropics receive the most solar energy over the course of the year, and consequently have the highest temperatures on the planet. Even when not directly overhead, the sun is still close to overhead throughout the year, therefore the tropics also have the lowest seasonal variation on the planet; "winter" and "summer" lose their temperature contrast. Instead, seasons are more commonly divided by precipitation variations than by temperature variations. The tropics maintain wide diversity of local climates, such as rain forests, monsoons, savannahs, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melbourne Zoo
Melbourne Zoo is a zoo in Melbourne, Australia. It is located within Royal Park, Melbourne, Royal Park in Parkville, Victoria, Parkville, approximately north of the centre of Melbourne. It is the primary zoo serving Melbourne. As of 2021, the zoo contains 3742 animals comprising 243 species, from Australia and around the world. The zoo is accessible via Royal Park railway station, Royal Park station on the Upfield line, Upfield railway line, and is also accessible via tram routes Melbourne tram route 58, 58 and Melbourne tram route 19, 19, as well as by bicycle on the Capital City Trail. Bicycles are not allowed inside the zoo itself. The Royal Melbourne Zoological Gardens is a full institutional member of the Zoo and Aquarium Association and the World Association of Zoos and Aquariums. The zoo is set among flower gardens and picnic areas. Many of the animals are now organised in Bioclimatic, bioclimatic zones: African rainforest ('Gorilla Rainforest') that include gorillas a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Antonio
San Antonio ( ; Spanish for " Saint Anthony") is a city in the U.S. state of Texas and the most populous city in Greater San Antonio. San Antonio is the third-largest metropolitan area in Texas and the 24th-largest metropolitan area in the United States at 2.6 million people in the 2020 United States census. It is the most populous city in and the county seat of Bexar County. San Antonio is the seventh-most populous city in the United States, and the second-most populous in the Southern United States and Texas, after Houston. Founded as a Spanish mission and colonial outpost in 1718, the city in 1731 became the first chartered civil settlement in what is now present-day Texas. The area was then part of the Spanish Empire. From 1821 to 1836, it was part of the Mexican Republic. It is the oldest municipality in Texas, having celebrated its 300th anniversary on May 1, 2018. Straddling the regional divide between South and Central Texas, San Antonio anchors the southwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crèche (zoology)
In zoology, a crèche (from a French term for childcare) is an animal behaviour where offspring are cared for as a group by multiple females. Many species such as common eiders, lions, and penguins form crèches and exhibit group behaviours. Crèches can serve different functions and purposes depending on the species and the environment. For example, some crèches may aid in defence while other crèches may aid in feeding and protection from harsh weather conditions. This form of group living has evolved to become advantageous to the species. Studies have shown that by participating in group living, species will increase their inclusive fitness since their young will be in a better condition to reproduce and carry on the line of descendants in the species. Behaviour in eider ducks In the common eider population, after giving birth to their eggs, the mother will incubate them until they hatch. The mothers will hear a signal from the juveniles that will cause her to move awa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
