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The Cretaceous–Paleogene (K–Pg) extinction event, [a] also known as the K–T extinction, [b] was the mass extinction of three-quarters of the plant and animal species on Earth [2] [3] approximately 66 million years ago.
The book starts with Bryson explaining his curiosity about the Appalachian Trail near his house. He and his old friend Stephen Katz start hiking the trail from Georgia in the South, and stumble in the beginning with the difficulties of getting used to their equipment; Bryson also soon realizes how difficult it is to travel with his friend, who is a crude, overweight recovering alcoholic, and ...
Mass extinctions are characterized by the loss of at least 75% of species within a geologically short period of time (i.e., less than 2 million years). [18] [51] The Holocene extinction is also known as the "sixth extinction", as it is possibly the sixth mass extinction event, after the Ordovician–Silurian extinction events, the Late Devonian extinction, the Permian–Triassic extinction ...
Berlin (/ b ɜːr ˈ l ɪ n / bur-LIN; German: [bɛʁˈliːn] ⓘ) [10] is the capital and largest city of Germany, by both area and population. [11] With 3.66 million inhabitants, [5] it has the highest population within its city limits of any city in the European Union.