There are many theories, one of them being an asteroid that killed almost all of life on earth millions of years ago. Watch Naked Science on either Discovery or History Channel, it explains the theory and is very interesting.
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paleontology
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A mass impact threw dust into the atmosphere; this "shaded" the Earth from the Sun's warming rays.
It means that - the species is Extinct. Which means - the animal can no longer be found either in wild or in captivity (Zoos) Ex: Dinosaurs are extinct.
The Illumanti reptile aliens abducted and probed the indus valley.
There are many theories as to why, but most scientists agree that a huge meteor crashed in the Yucatan Peninsula causing global ash clouds, tidal waves, and many other problems for dinosaurs and other extinct animals.
The main answer you would have heard of would be the giant meteor, but that's not the main reason. There were Tsunami's, Volcanic Eruptions and ect and that could cause climate change and then the plants would die there for the Herbivors ( plant eateing dinosaurs ) would die out because of the lava and stuff killing the plants and then the Carnivors ( Meatv eation dinosaurs ) would die out because all of the herbivors would have died out. By The way this was answered by a 10 year old boy!
The Disappearance was created in 1977.
how you treat them, how often you feed them, if you arent their real first owner they will eventually end up going home
Dinosaurs catch the imagination of kids for many reasons. One reason is because they are no longer here. Kids like to imagine life with a dinosaur. Another reason is due to the size of many of them. Dinosaurs also capture the imagination of adults.
There are several reasons why your fish may have disappeared. Some common reasons include illness, predators, water quality issues, or stress. It's important to investigate these factors to determine the cause of your fish's disappearance.