Resultado da Busca
Há 1 dia · Human history is the development of humankind from prehistory to the present, understood through the study of written records, archaeology, anthropology, genetics, linguistics, and other forms of evidence. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.
Há 1 dia · History of the term Shown in a museum, various models of species across various taxa and orders visualize the variety of life on earth. 1916 – The term biological diversity was used first by J. Arthur Harris in "The Variable Desert", Scientific American: "The bare statement that the region contains a flora rich in genera and species and of diverse geographic origin or affinity is entirely ...
Há 1 dia · Parthenogenesis ( / ˌpɑːrθɪnoʊˈdʒɛnɪsɪs, - θɪnə -/; [1] [2] from the Greek παρθένος, parthénos, 'virgin' + γένεσις, génesis, 'creation' [3] ) is a natural form of asexual reproduction in which growth and development of an embryo occur directly from an egg, without need for fertilization.
Há 10 horas · India has marked World Environment Day by designating Nagi Bird Sanctuary and Nakti Bird Sanctuary as its newest wetlands of international importance. These "Ramsar Sites" are both man-made reservoirs situated in the Jhajha forest range of Jamui District in Bihar, India. Their catchments feature dry deciduous forests surrounded by hills.
Há 1 dia · A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus Bombus, part of Apidae, one of the bee families. This genus is the only extant group in the tribe Bombini, though a few extinct related genera (e.g., Calyptapis) are known from fossils. They are found primarily in higher altitudes or latitudes in the ...
Há 4 horas · Aves (birds) See text for extinct groups. Reptiles, as commonly defined, are a group of tetrapods with an ectothermic ('cold-blooded') metabolism and amniotic development. Living reptiles comprise four orders: Testudines ( turtles ), Crocodilia ( crocodilians ), Squamata ( lizards and snakes ), and Rhynchocephalia (the tuatara ).
Há 1 dia · Africa is highly biodiverse; it is the continent with the largest number of megafauna species, as it was least affected by the extinction of the Pleistocene megafauna. However, Africa also is heavily affected by a wide range of environmental issues, including desertification, deforestation, water scarcity and pollution.
