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Dinosaurs
Dinosaurs are a prehistoric species that lived on Earth from 230 to 65 million years ago.
3,979 Questions
according to fossil records, megalodon fossils are found all over the world, back when it lived, megalodons lived in warm water
What time period did spirifers live?
They lived prior to a global world wide flood. You find them in the cretaceous period with billions of dead things buried in rock layers covered by water all over the earth.
How and when did the dinosaur go extinct?
no ones know exactly, but I think that a big asteroid hit earth, causing a climate change, making life harder for the Dino's to live, than they eventually died, and the small mammal's, and maybe some small birds and reptiles etc. survived, because they might have fur or a coat to survive the cold
In prehistoric times what creatures lived in Louisiana?
During the late Cretaceous, about 90 to 70 million years ago, Louisiana was submerged under the warm and shallow Western Interior Seaway. Here, animals like Ginsu sharks, plesiosaurs, mosasaurs (huge, carnivorous, marine lizards), huge turtles called Archelon, and even Hesperornis (a fully aquatic bird), lived there. The waters were also fished by flying birds called Icthyornis.
Note that some of these organisms are speculative; the reason being that they were found in very nearby areas with exactly the same habitat and at the same time.
How many people have lived since the world was made 6000 years ago?
The world is 4.5 billion years old. There has been billions of people who have lived and died since the first humans.
What were the smallest and biggest dinosaurs?
the smallest dinosaur ever discovered so far is the compsongnathus this animal lived in the Jurassic period and the largest dinosaur ever discovered is argentinosaurus it weight 100 tons!!!!
Where did the platecarpus live?
Technically, Platecarpus swam in North America which sounds a bit bizarre but in the late cretaceous which it lived in, had a huge gap separating the states. So there you have it folks.
Does a saltopus dinosaur leave ther eggs to hatch alone or do they sit on them?
they leave them to hatch alone
How big is the biggest bearded eel ever legitimately recorded?
I heard that when they created the lochs that join to loch ness some of them were drained and found dead inside some of them were particularly large eels. Is the lochness monster a giant eel?
Why do scientists believe think dinosaurs no longer roam the earth?
Because they're using a definition of "dinosaur" that allows them to think that.
Petrified wood is a good example of what type of fossil?
Petrified wood is a good example of an original remain. This means that it is untouched and changed in a natural way.
How does the durationm of human life on earth compare with of the dinosaurs?
The best analogy I have ever heard to really put this into perspective is written in Louie Psihoyos And John Knoebber's book Hunting Dinosaurs:
"Kevin Padian of the University of California at Berkley uses the following analogy to give his students a Deep Time perspective. 'If you take the history of life as the length of your arm, then one stroke of a nail file erases human history.'
Putting it another way, geology professor Don L. Eicher came up with this brilliant analogy of compressing the Earth's history into one calendar year. With some of my own updated and twisted additions we find that on
January 1: The Earth begins.
Springtime, March 20: The Birthday of DNA. The first one-celled bacteria, bobbing happily in the muck, re-creates itself. All lifeforms thereafter will be stamped with this same DNA.
Thanksgiving: Sea Creatures begin pioneering the land.
December 11: 90 percent of all life forms go extinct.
December 13: Dinosaurs enter.
The day after Christmas: Dinosaurs go extinct.
The evening of December 31: Manlike creatures appear.
December 31 11:59:45 to 11:59:50: Roman empire rises and falls.
3.5 seconds to midnight: Columbus discovers America (or, if you wish, Indians discover Columbus)
1/20th of a second to midnight: The Beatles play the Ed Sullivan Show."
(This excerpt copyright Louie Psihoyos, Hunting Dinosaurs, published by Random House in 1994)
Yes, I know. I suck at citing my sources. Credit was given, and all required information is there. Leave me alone. >.<
Write an adventure story of you rescue baby dinosaur?
My title for an adventure story of baby dinasour would be "Brave Tacts Saves Baby Dinasour."
What prehistoric animals lived in Nevada?
Some of the most notable prehistoric animals that lived in Canada were the Dinosaurs. Other creatures included Sloths and Mammoths.
Elements and compounds are recycled in nature, so that carbon and oxygen and nitrogen in our bodies may have also existed in the bodies of dinosaurs who have decomposed back into the biosphere.
The physical integrity of atoms can only be affected by nuclear reactions such as fission and fusion, and such reactions are very uncommon on Earth. These days (as in, the last few billion years) the only atomic nuclei on Earth to be affected naturally are those that are subject to radioactive decay (various heavy elements and isotopes etc.). Therefore, the vast majority of the atoms that exist today also existed during the Mesozoic, when dinosaurs ruled the Earth, considering that living beings are for the most part composed of stable elements. Those atoms may have taken part in countless multitudes of chemical reactions, and been part of many organisms and inert material since then, but the atoms themselves remain unchanged. Therefore we can safely say that at least some of the atoms that are now in your body existed in the bodies of dinosaurs millions of years ago (and in the bodies of many other creatures that lived even earlier). Living beings constantly exchange matter and energy, through excretion and the like, and millions of years in the future many atoms that are now in your body will be present in the organisms that will exist at that time.
Did dinousers live befoore humens?
The last dinosaurs (except birds which are close relatives) died about 65 million years ago. The first human like creatures lived about 3 million years ago, with modern humans not appearing until less than 100,000 years ago. No human ever saw a living dinosaur. The largest mammals alive when dinosaurs lived were only a bit bigger than a very large modern rat, and were about as smart.
And for what its worth, the earliest dinosaurs lived roughly 200 million years ago. That's more than 200,000 times longer than the earliest modern humans.
Yes, dinosaurs lived before humans, in every sense of the words.
How is Marina like in So Much to Tell You by John Marsden?
Very scared from everyone in the dorm. Quit in class because she is scared to speak, she thinks if tries to say anything random words can come out of her mouth. she feels embers if anyone looks at her. She writes about her self in this diary "So Much To Tell You". But by end of the year she starts to talk to many of the girls in the dorm.
