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Calls for wildlife conservation in the United States increased in the early 1900s because of the visible decline of several species. [5] 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. [6]
The Red List of 2012 was released 19 July 2012 at Rio+20 Earth Summit; [17] nearly 2,000 species were added, [18] with 4 species to the extinct list, 2 to the rediscovered list. [19] The IUCN assessed a total of 63,837 species which revealed 19,817 are threatened with extinction.
The only objects on the Torino scale that have ever ranked higher are asteroids 99942 Apophis, which had a rating of 4 for four days in late 2004, the highest recorded rating; (144898) 2004 VD 17, with a historical rating of 2 from February to May 2006; and 2024 YR 4, with a rating of 3 from January 27, 2025 to February 20, 2025, until as of ...
A bull elephant in musth, wild or otherwise, is extremely dangerous to humans, other elephants, and other species. Bull elephants in musth have killed keepers/mahouts, as well as other bull elephants, female elephants, and calves (the last usually inadvertently or accidentally in what is often called "herd infighting"). [13]
The human desire for ivory has always existed, but the elephant poaching rate has recently increased, and now it is higher than ever. New initiatives generate hope for the end of elephant poaching ...
[30]: 415 Thus, in total, between seven and eighteen percent of the United States' known animals, fungi and plants are near extinction. [30]: 416 This total is substantially more than the number of species protected in the United States under the Endangered Species Act. Bald eagle American bison
Capital Area District Libraries Local History department offers glimpses into Lansing's past
The brain of an elephant weighs 4.5–5.5 kg (10–12 lb) compared to 1.6 kg (4 lb) for a human brain. [77] It is the largest of all terrestrial mammals. [78] While the elephant brain is larger overall, it is proportionally smaller than the human brain. At birth, an elephant's brain already weighs 30–40% of its adult weight.