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22 de sept. de 2023 · Learn about the history and factors of 25 animals that have gone extinct, from the Tasmanian tiger to the baiji. Find out how human activities, natural disasters, diseases, and climate change have contributed to animal extinction.
5 de feb. de 2019 · Learn what extinction is, how it happens, and why it matters. Explore the history and causes of mass extinctions, and the current threats to biodiversity.
This page features lists of species and organisms that have become extinct. The reasons for extinction range from natural occurrences, such as shifts in the Earth's ecosystem or natural disasters, to human influences on nature by the overuse of natural resources, hunting and destruction of natural habitats.
13 de ene. de 2021 · Dozens of frogs, fish, orchids and other species may have gone extinct due to human activity. Learn about the causes, consequences and conservation efforts for these lost biodiversity.
Hace 4 días · Extinction is the dying out or extermination of a species, which can be caused by environmental or evolutionary factors. Learn about the different types of extinction, the current extinction crisis, and some examples of extinct species from Britannica.
19 de oct. de 2023 · Learn about the process and causes of extinction, the dying out of a species, and its role in evolution. Explore the history of five mass extinctions and the current threat of a sixth one due to human activities.
Paleontology Resources. Extinction Over Time. For years, paleontologists did not know what to make of this fossil from the ancient shark Helicoprion that lived 290 million years ago. It was proposed to be a weapon at the tip of the nose, an unusual dorsal fin, or a defensive tail adornment.
