The most popular scientific understanding is that a (x) mile wide meteorite hit the earth near the Yucatan Peninsula in the Gulf of Mexico, but even this is still a contested theory and is far from fact.
inb4 birds are descendants of dinosaurs so they're not technically extinct
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"What killed the Dinosaurs? The [b]ice[/b] age." - Mr. Freeze
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Dinosaurs never existed, because the earth is only 6000 years old ( ͡° ͜ʖ ͡°)
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Edited by PandaTheeInsipid: 7/23/2014 8:09:56 AMYour mother wait wait better one. Thanks Obama!
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I did it
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This is what happened in the K-T extinction: A meteorite, 6km long hit the Gulf of Mexico around 65 million years ago. Than it caused a global earthquake, after that a shockwave of super heated gas formed that was moving away from impact zone. Than all the debris (that was in the sky right after impact) fell towards the ground, which heated the earths surface to around 1000 regress Celsius. Also East Asia was the last area to feel the danger. Lastly all the smoke and ash covers up the sunlight, which made the Earth real dark, than a nice age happened. In this time the herbivores were the ones to did out first, than the carnivores, not having enough food to sustain their bodies had to resort to cannibalism. The mammals and fish could hide away from the danger, and since at the time all mammals were up to the size of a dog they didn't need that much food, they were also scavengers. After that the Mesozoic era ended and the mammals soon dominated the planet. This marked the era of the mammals and the one were living in right now the: Cenozoic. [spoiler]yeah lol I'm a nerd.[/spoiler]
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Disregard the [url=http://i.imgur.com/Thqap5O.png]city lights[/url].
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The Reapers.
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My opinion: A meteor struck the Earth, it killed some dinosaurs on impact, however the remaining survivors were killed off by an ice age caused by the dust and ashes spewed into air after the collision.
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>implying dinosaurs ever existed.
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Edited by Banned n3rd: 7/22/2014 3:09:55 AMA gigantic brain
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The Desticles [spoiler]the dinosaurs couldn't take the cringe[/spoiler]
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Transformers. Didn't you see the new movie?
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The government.
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Street Sharks obviously...
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Democrats
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Noah was a racist?
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The Reapers.
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Your kind is racist.
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The dinosaurs went extinct because you touch yourself at night.
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Aliens.
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They committed Sudoku.
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It's all Obama's fault.
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Hungry obese humans armed with BBQ sauce and rocket launchers.
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It upsets me that biblical flood is the 2nd highest answer.
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a napkin
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Narwalls that are now being hunted by unicorns