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Extinct due to destruction of nesting habitat by introduced goats, and predation by cats. [56] Zacatecas Worthen's sparrow: Spizella wortheni browni: Northwest Zacatecas, Mexico Last recorded in 1961. Extinct due to habitat loss to agriculture, overgrazing and erosion by cattle herding, and decline of native herbivores which maintained the bird ...
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The extinct Beothuks of Newfoundland made pudding out of the eggs of the great auk. [20]: 313 The Dorset Eskimos also hunted it. The Saqqaq in Greenland overhunted the species, causing a local reduction in range. [51] The only known illustration of a great auk drawn from life, Ole Worm's pet, received from the Faroe Islands, 1655
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.
Extinction dates in the literature are usually the dates of the last verified record (credible observation or specimen taken); for many Pacific birds that became extinct shortly after European contact, however, this leaves an uncertainty period of over 100 years, because the islands on which they lived were only rarely visited by scientists.
Paraceratherium is an extinct genus of hornless rhinocerotoids belonging to the family Paraceratheriidae. It is one of the largest terrestrial mammals that has ever existed and lived from the early to late Oligocene epoch (34–23 million years ago).
One example was the near-extinction of the bison, which used to number in the tens of millions. Similarly, the extinction of the passenger pigeon, which numbered in the billions, caused concern. [5] The whooping crane also received widespread attention as unregulated hunting and habitat loss contributed to a steady decline in its population.
The largest extinction was the Kellwasser Event (Frasnian-Famennian, or F-F, 372 Ma), an extinction event at the end of the Frasnian, about midway through the Late Devonian. This extinction annihilated coral reefs and numerous tropical benthic (seabed-living) animals such as jawless fish, brachiopods, and trilobites.