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The Late Pleistocene to the beginning of the Holocene saw the extinction of the majority of the world's megafauna (typically defined as animal species having body masses over 44 kilograms (97 lb)), [1] which resulted in a collapse in faunal density and diversity across the globe. [2] The extinctions during the Late Pleistocene are ...
Pleistocene wolf. During the Pleistocene, wolves were widely distributed across the Northern Hemisphere. [1] Some Pleistocene wolves, such as Beringian wolves and those from Japan, exhibited large body size in comparison to modern gray wolf populations. [2][3] Genetic analysis of the remains of Late Pleistocene wolves suggest that across their ...
Megatherium (/ mɛɡəˈθɪəriəm / meg-ə-THEER-ee-əm; from Greek méga (μέγα) 'great' + theríon (θηρίον) 'beast') is an extinct genus of ground sloths endemic to South America that lived from the Early Pliocene [1] through the end of the Late Pleistocene. [2] It is best known for the elephant -sized type species Megatherium ...
It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name Eocene comes from the Ancient Greek Ἠώς (Ēṓs, "Dawn") and καινός (kainós, "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. [7][8] The Eocene spans the time from the end of the Paleocene Epoch to the beginning ...
To call megalodon the largest fish to ever exist, we must default to the estimate of 82 feet, because the longest whale shark we know of was 61.7 feet. (That was not based on an estimate, either ...
Pleistocene rewilding is the advocacy of the reintroduction of extant Pleistocene megafauna, or the close ecological equivalents of extinct megafauna. [ 1 ] It is an extension of the conservation practice of rewilding, which aims to restore functioning, self-sustaining ecosystems through practices that may include species reintroductions.
The Virginia opossum, Didelphis virginiana, the only marsupial in temperate North America. Armadillos, opossums and porcupines are present in North America today because of the Great American Interchange. Opossums and porcupines were among the most successful northward migrants, reaching as far as Canada and Alaska, respectively.
A mammoth is any species of the extinct elephantid genus Mammuthus. They lived from the late Miocene epoch (from around 6.2 million years ago) into the Holocene about 4,000 years ago, and various species existed in Africa, Europe, Asia, and North America. Mammoths are distinguished from living elephants by their (typically large) spirally ...