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The Star Trek Voyager 1997 episode "Distant Origin" has the crew encounter the Voth, a spacefaring race that appear to have evolved on Earth from dinosaurs. When discussing this theory with a Voth scientist, Chakotay speculates that their ancestors evolved on an isolated continent that was destroyed by cataclysm, with all traces buried under ...
The current theoretical model of the atom involves a dense nucleus surrounded by a probabilistic "cloud" of electrons. Atomic theory is the scientific theory that matter is composed of particles called atoms. The definition of the word "atom" has changed over the years in response to scientific discoveries.
The collision would have released the same energy as 100,000,000 megatonnes of TNT (4.2 × 10 23 J), over a billion times the energy of the atomic bombs dropped on Hiroshima and Nagasaki. [3] A 2016 drilling project into the peak ring of the crater strongly supported the hypothesis, and confirmed various matters that had been unclear until that ...
In biology, evolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organization , from kingdoms to species , and individual organisms and molecules , such as DNA and proteins .
The image shows the skeletons of tyrannosaurs partially buried in the middle of what has become a desert after the impact of a large asteroid in present-day Mexico. (Getty Images) A remarkable ...
An impact winter is a hypothesized period of prolonged cold weather due to the impact of a large asteroid or comet on the Earth's surface. If an asteroid were to strike land or a shallow body of water, it would eject an enormous amount of dust, ash, and other material into the atmosphere, blocking the radiation from the Sun. This would cause ...
He claims that even though mammals (such as humans) can have relatively long lifespans, we still operate under dinosaur-era restraints. Mammals may struggle to attain long life thanks to dinosaurs.
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