THESE PREHISTORIC REPTILES WALKED THE LAND MILLIONS OF YEARS BEFORE PEOPLE LIVED ON THE EARTH. SO HOW DO WE KNOW THEY REALLY EXISTED?WE HAVE FOUND BONES, TEETH, FOOTPRINTS, AND EVEN EGGS PRESERVED IN ROCK. THESE REMAINS ARE CALLED fossils. SCIENTISTS WHO STUDY FOSSILS ARE CALLED palentologists.
WE KNOW DINOSAURS CAME IN ALL SHPAES AND SIZES, BUT THERE ARE MANY THINGS WE DON"T KNOW. WHAT COLORS THEY WERE, DID THEY MAKE SOUNDS, AND IF SO WHAT KIND? AND PROBABLY THE MOST DIVIDED QUESTION, WHY DID THEY ALL DIE OUT?
HOW DID THEY REPRODUCE,
DINOSAURS LAID EGGS JUST LIKE REPTILES WE SEE EVERYDAY. SOME STAYED IN THE NEST FOR A FEW MONTHS. THE DINOSAURS WERE TOO BIB TO SIT ON THE NESTS. THEY LAID THEM IN BOWL SHAPED MOUNDS OF SAND AND COVERED THEM WITH LEAVES TO KEEP THEM WARM TIL HATCHING.
FLYING REPTILES....FLYING DINOSAURS CALLED PTEROSAURS
SCREECHED THROUGH THE SKIES. QUETZALCOATLUS HAD A WING SPAN 40 FEET ACROSS. THE LARGEST FLYING CREATURE EVER KNOWN. PTERANODAN HAD A HEAD CREST. IT MUCH RESEMBLED THE PELICAN OF TODAY IN SOME WAYS.
DINOSAURS TRAVELED TOGETHER IN HERDS, MUCH LIKE THE ANIMALS OF TODAY. FOR SAFTY AND COMPANIONSHIP PROBABLY.