Eastern Oncilla
The oncilla (''Leopardus tigrinus''), also known as the northern tiger cat, little spotted cat, and tigrillo, is a small spotted cat ranging from Central America to central Brazil. It is listed as Vulnerable on the IUCN Red List, and the population is threatened by deforestation and conversion of habitat to agricultural land. In 2013, it was proposed to assign the oncilla populations in southern Brazil, Paraguay, and Argentina to a new species: the southern tiger cat (''L. guttulus''), after it was found that it does not interbreed with the oncilla population in northeastern Brazil. Characteristics The oncilla resembles the margay (''L. wiedii'') and the ocelot (''L. pardalis''), but it is smaller, with a slender build and narrower muzzle. Oncillas are one of the smallest wild cats in South America, reaching a body length of with a long tail. While this is somewhat longer than the average domestic cat, the oncilla is generally lighter, weighing . The fur is thick ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Tiger Quoll
The tiger quoll (''Dasyurus maculatus''), also known as the spotted-tail quoll, the spotted quoll, the spotted-tail dasyure, native cat or the tiger cat, is a carnivorous marsupial of the quoll genus ''Dasyurus'' native to Australia. With males and females weighing around , respectively, it is the world's second-largest extant carnivorous marsupial, behind the Tasmanian devil. Two subspecies are recognised; the nominate is found in wet forests of southeastern Australia and Tasmania, and a northern subspecies, ''D. m. gracilis'', is found in a small area of northern Queensland and is endangered. Taxonomy The tiger quoll is a member of the family Dasyuridae, which includes most carnivorous marsupial mammals. This quoll was first described in 1792 by Robert Kerr, the Scottish writer and naturalist, who placed it in the genus ''Didelphis'', which includes several species of American opossum. The species name, ''maculatus'', indicates this species is spotted. Two subspecies are r ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Amazon Basin
The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, and Venezuela. Most of the basin is covered by the Amazon rainforest, also known as Amazonia. With a area of dense tropical forest, this is the largest rainforest in the world. Geography The Amazon River begins in the Andes Mountains at the west of the basin with its main tributary the Marañón River and Apurimac River in Peru. The highest point in the watershed of the Amazon is the second biggest peak of Yerupajá at . With a length of about before it drains into the Atlantic Ocean, it is one of the two longest rivers in the world. A team of scientists has claimed that the Amazon is longer than the Nile, but debate about its exact length continues. The Amazon system ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Guyana
Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the Atlantic Ocean to the north, Brazil to the south and southwest, Venezuela to the west, and Suriname to the east. With , Guyana is the third-smallest sovereign state by area in mainland South America after Uruguay and Suriname, and is the second-least populous sovereign state in South America after Suriname; it is also one of the least densely populated countries on Earth. It has a wide variety of natural habitats and very high biodiversity. The region known as "the Guianas" consists of the large shield landmass north of the Amazon River and east of the Orinoco River known as the "land of many waters". Nine indigenous tribes reside in Guyana: the Wai Wai, Macushi, Patamona, Lokono, Kalina, Wapishana, Pemon, Akawaio and Warao. Histo ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Venezuela
Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in the Caribbean Sea. It has a territorial extension of , and its population was estimated at 29 million in 2022. The capital and largest urban agglomeration is the city of Caracas. The continental territory is bordered on the north by the Caribbean Sea and the Atlantic Ocean, on the west by Colombia, Brazil on the south, Trinidad and Tobago to the north-east and on the east by Guyana. The Venezuelan government maintains a claim against Guyana to Guayana Esequiba. Venezuela is a federal presidential republic consisting of 23 states, the Capital District and federal dependencies covering Venezuela's offshore islands. Venezuela is among the most urbanized countries in Latin America; the vast majority of Venezuelans live in the cities of the n ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Gestation
Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). It is typical for mammals, but also occurs for some non-mammals. Mammals during pregnancy can have one or more gestations at the same time, for example in a multiple birth. The time interval of a gestation is called the '' gestation period''. In obstetrics, ''gestational age'' refers to the time since the onset of the last menses, which on average is fertilization age plus two weeks. Mammals In mammals, pregnancy begins when a zygote (fertilized ovum) implants in the female's uterus and ends once the fetus leaves the uterus during labor or an abortion (whether induced or spontaneous). Humans In humans, pregnancy can be defined clinically or biochemically. Clinically, pregnancy starts from first day of the mother's last period. Biochemically, pregnancy starts when a woman's human chorionic gonadotropin (hCG) levels ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Estrus
The estrous cycle (, originally ) is the set of recurring physiological changes that are induced by reproductive hormones in most mammalian therian females. Estrous cycles start after sexual maturity in females and are interrupted by anestrous phases, otherwise known as "rest" phases, or by Pregnancy, pregnancies. Typically, estrous cycles repeat until death. These cycles are widely variable in duration and frequency depending on the species.Bronson, F. H., 1989. Mammalian Reproductive Biology. University of Chicago Press, Chicago, IL, USA. Some animals may display bloody vaginal discharge, often mistaken for menstruation. Many mammals used in commercial agriculture, such as cattle and sheep, may have their estrous cycles artificially controlled with hormonal medications for optimum productivity. The male equivalent, seen primarily in ruminants, is called Rut (mammalian reproduction), rut. Differences from the menstrual cycle Mammals share the same reproductive system, includ ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Antioquia Department
) , anthem = Himno de Antioquia , image_map = Antioquia in Colombia (mainland).svg , map_alt = , map_caption = Antioquia shown in red , image_map1 = Antioquia Topographic 2.png , map_caption1 = Topography of the department , coordinates = , subdivision_type = Country , subdivision_name = , subdivision_type1 = Region , subdivision_name1 = Andean Region , established_title = Established , established_date = 1826 , founder = , named_for = , seat_type = Capital , seat = Medellín , parts_type = Largest city , parts_style = para , p1 = , government_footnotes ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Los Nevados National Natural Park
Los Nevados National Natural Park ( es, Parque Nacional Natural Los Nevados) is a national park located in the Cordillera Central of the Colombian Andes. The park surrounds the northern volcanic complex formed by Nevado del Ruiz, Nevado del Tolima, Nevado de Santa Isabel, the ''paramillos'' of Cisne, Santa Rosa and Quindío and the Cerro Bravo and Cerro Machín. The park is located in the departments of Caldas, Quindío, Risaralda, Tolima and spans between the municipalities Manizales, Villamaría, Santa Rosa de Cabal, Pereira, Salento, Villahermosa, Anzoátegui, Santa Isabel, Murillo, Ibagué and Casabianca. State of the Park Entrance through Brisas sector (northern sector of the Park) is only allowed to Valle de las Tumbas since the Servicio Geológico Colombiano has declared Nevado del Ruiz Volcano's activity at Yellow Alert Level (level III). It is highly recommend for visitors to consult the state of volcanic activity in the Servicio Geológico Colombiano ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Cordillera Occidental (Colombia)
The Cordillera Occidental ( en, Western Ranges) is the lowest in elevation of the three branches of the Colombian Andes. The average altitude is and the highest peak is Cerro Tatamá at . The range extends from south to north dividing from the Colombian Massif in Nariño Department, passes north through Cauca, Valle del Cauca, Risaralda, Chocó, and Caldas Departments to the Paramillo Massif in Antioquia and Córdoba Departments. From this massif the range divides further to form the Serranías de Ayapel, San Jerónimo and Abibe. Only to recede into the Caribbean plain and the Sinú River valley. Geography The western part of the mountain range belongs to the Pacific region of Colombia and its Chocó–Darién moist forests ecoregion, with the San Juan River being the main watershed, while the eastern part belongs to the Cauca River basin. The northern and northwestern parts belong to the Atlantic Slope, with the Atrato and Sinú Rivers being the main water ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Colombia
Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuela to the east and northeast, Brazil to the southeast, Ecuador and Peru to the south and southwest, the Pacific Ocean to the west, and Panama to the northwest. Colombia is divided into 32 departments and the Capital District of Bogotá, the country's largest city. It covers an area of 1,141,748 square kilometers (440,831 sq mi), and has a population of 52 million. Colombia's cultural heritage—including language, religion, cuisine, and art—reflects its history as a Spanish colony, fusing cultural elements brought by immigration from Europe and the Middle East, with those brought by enslaved Africans, as well as with those of the various Amerindian civilizations that predate colonization. Spanish is th ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Volcán Barú
The Volcán Barú (also Volcán de Chiriquí) is an active stratovolcano and the tallest mountain in Panama, at high. It lies about off the border of Costa Rica. It is also the twelfth highest peak in Central America. Due to its height and the narrowness of the isthmus of Panama, it is possible (though relatively rare) to see both the Pacific Ocean and Caribbean Sea from Volcán Barú's peak on a clear day. Geography The small town of Volcán at the base of Volcán Barú sits on the remnants of a huge lahar that appears to have breached the caldera. A small river has eroded the lahar exposing an ancient forest below dated to about 1000 years old. Volcán Barú is surrounded by a fertile area of cool highlands drained by the Chiriquí Viejo and Caldera Rivers. The towns of Volcán and Cerro Punta can be found on its western side, while Boquete is on the eastern flank. The occasional fall of hail or ice pellets has been reported on the summit, where the minimum temperature c ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Darién National Park
Darién National Park ( es, Parque Nacional Darién) is a World Heritage Site in Panama. It is about 325 kilometers from Panama City, and is the most extensive of all national parks of Panama and is one of the most important world heritage sites in Central America. The Darién National Park is a natural bridge spanning North and South America. In 1972 an area of became part of the Alto Darién Protection Forest. In 1980 the area was declared a National Park. In 1983 an area of became a UNESCO biosphere reserve. The park covers . It is located in southernmost Panama in Darién province and its southern boundary extends along 90% of the Panama-Colombian border. It lies between the range, which parallels t ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |