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Prehistoric Predators is a 2007 National Geographic Channel program based on different predators that lived in the Cenozoic era, including Smilodon and C. megalodon.The series investigated how such beasts hunted and fought other creatures, and what drove them to extinction.
[2] [3] Estimates on the number of Earth's current species range from 10 million to 14 million, [4] with about 1.2 million or 14% documented, the rest not yet described. [5] However, a 2016 report estimates an additional 1 trillion microbial species, with only 0.001% described.
The official San Diego Zoo YouTube account left a now-pinned comment on the video in 2020, stating that they felt honored being featured in the first-ever YouTube video. [23] As of October 22, 2024, it is the most-liked comment on the platform, with 3.9 million likes.
Late Cretaceous Montana, 66 million years ago; The episode starts with the crew erecting the prehistoric animal enclosures. Nigel immediately knows which animal he wants to bring back first: the huge and most famous dinosaur Tyrannosaurus rex. Nigel goes through the time portal to the Hell Creek Formation, aiming to bring back a Tyrannosaurus.
The story begins in Africa, where, some 10 million years ago, apes descended from the trees and ventured out into the open grasslands in search of food. They slowly adapted to the habitat and grew in size. Their acute sense of vision led to them standing erect to spot predators, leaving their hands free to bear weapons.
Stone tools found at the Shangchen site in China and dated to 2.12 million years ago are considered the earliest known evidence of hominins outside Africa, surpassing Dmanisi hominins found in Georgia by 300,000 years, although whether these hominins were an early species in the genus Homo or another hominin species is unknown. [37
The B/1M prototype (like the steel B/1 model that preceded it) was inspired by the post-war movement’s angular forms — and, more specifically, the windows of New York’s Breuer Building.
The first right tooth was the smallest at around 31.5 cm (1 ft). [1] [8] The Beaumaris sperm whale tooth measured around 30 cm (1 ft) in length, and is the largest fossil tooth discovered in Australia. [13] [14] These teeth are thought to be among the largest of any known animal, excluding tusks.