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Hace 3 días · Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
Hace 2 días · Extinction, in biology, is the dying out or extermination of a species. It occurs when species are diminished because of environmental forces (natural or human-made) or because of evolutionary changes in their members.
Hace 1 día · Researchers have found a chemical clue in Italian limestone that explains a mass extinction of marine life in the Early Jurassic period, 183 million years ago. Volcanic activity pumped out CO2 ...
Hace 4 días · Summary. The prospect of extinction, the complete loss of a species or other group of organisms, has long provoked strong responses. Until the turn of the 18th century, deeply held and widely shared beliefs about the order of nature led to a firm rejection of the possibility that species could entirely vanish.
Hace 3 días · An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp fall in the diversity and abundance of multicellular organisms.
9 de jun. de 2024 · New research explores the unresolved mystery of the extinction of ancient North America’s megafauna, highlighting new research using ZooMS to analyze fragmented bones from the Smithsonian’s collections.
14 de jun. de 2024 · Extinction is a process that diminishes the memory of a learned behaviour. This may occur by unlearning the original memory association that produces the behaviour or by...
