De+Haro,+Anthony

=Dinosaurs= By De Haro Anthony Per 1

=Table of Contents= page......................1Introduction page......................2What are dinosaurs? page......................3 Their diet page......................4 Teeth page......................5Where dinosaurs in herds? page......................6How smart where they? page......................7Male or female? page......................8defense/offense? page......................9Skeleton page......................10Why did the dinosaurs die out? page......................11Bibligroghy

= = =Introduction= Dinosaurs lived millions of years ago before any humans.There where many kinds of dinosaurs like the trex,triceratops,and more.Some dinosaurs where carnevors others where plant eaters.Mostly the carnivors hunted the plant eaters in packs but someplant eaters had protectionso they faught back with their weopens.After the dinosaurs died out the first reptiles and mamalls where born.

=Page 2= Million years ago before any humans dinosaurs where one several kind of prehistoric reptiles that lived during the Mesozoic Era, "Age of the reptiles."The largest dinosaurs where over 100feet long and upto50feet.The smallest was the size of a chiken.It is hard to peple to know how dinosaurs mated,what color where they,how they behaved or even to know if their where a female or male.Difrent dinosaurs lived in difrent imes.So walked on two legs(they where bidepal)some walked on four(they where quadrupedal).Some could both some ran slow and some ran fast.Some where armor-plated,others had horns,crests,spikes,or frills.The dinosaurs dominated the Earth for over165million years ago.Paleontologists study their fossil remains to learn about the amazing prehistoric world of dinosaurs.

=Page 3= Some dinosaurs where canivors (meat-eaters)butmost were herbivors (planteaters).In any food chain,therehave to be more organisms at the lower levels of the chain because the transfer of food energy is inefficient and much of the energy is lost at each stage of the process.A big number of plants(called producers or autotophs)can sopport a smaller number of plants of plant-eaters are eaten by a smaller nuber of carnivors(secondary consumers).Plant eaters had blunt teeht for striping vegetation.Many herbivors have cheek pouches in wich they can store food for a while.Plant eaters usually have to eat a much larger volume of metarial than meat eaters(carnivors) do in order get the same amount of calories.Now carnivors need to have some way to get meat.Carnivorous dinosaurs usually had a long,strong legs so that they could run fast in order to catch thir prey.They also needed big,strongjaws,sharp teeth and deadly claws to kill and then tear apart the prey.