STRANGE CROCODILIANS

BIZZARE CROCS

In this programme we will see the most bizarre crocodilians that ever existed.There are all in the Mesozoic eon,again by time.First in the Jurassic period,in the European seas a marine crocodile lived,Metriorhynchus 5m from nose to tail but is not heavier than 2 humans.But crocodile in the sea,how he can do it?The answer is quit simple,he evolved complex lungs to live in the water like 300 other marine reptiles.Today the only sea croc is the saltwater crocodile in Australia.The next croc lived at the Early Cretaceous period in Africa,Sarcosuchus which means flesh eating crocodile,good name for a crocodile that needs 90kg of flesh evary day,at 12m and 4 tonnes it is the king of crocodiles.It hunted Sauropods the biggest creatures that ever existed.The next is the most bizarre croc ever,it’s a theropod crocodilian that ever walk planet Earth,N.Africa,119-93.5 million years ago Spinosaurus hunted the vast system of rivers and swamps that circled a desert,but why rivers? It’s a piscivore ,a fish eater.In 2010 a Spinosaurus skull was put to a CT Scanner,it revealed that is a creature that have its nose up its head to breath when it is in the water,but at the start of the head it have strange holes,like crocodiles, there are for sensing prey.But  94 million years ago the climate change,sea levels began to rise and the rivers and swamps that Spinosaurus hunted were lost,whiout them Spinosaurus became vulnerable,93.5 million years ago the last fish eating dinosaur disappeared from the fossil record.Today the strangest croc is the saltwater crocodile in Australia,but they are maybe many to come.