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January 11, 2009 / milesandhisfavorites

Safari with Miles 5:Card Shark

Hello there!  Grab your scuba gear, ’cause we’re diving into the deep in search of some killer fish-sharks!  We’ll

  • Explore the coolest sharks of all-the extinct ones!
  • View the three most wanted sharks
  • And latch on to the shark’s best friend!

Our first part of the safari will take us back in tiiiiiiiiiiimmmmeeee!  Ah, here we are.  Our first stop is the Devonian, when sharks started to evolve.  This is stethacanthus, one of the first sharks.

 

The first shark!

The first shark!

Uh, oh!  Hyneria!  If you’ve seen Walking with Monsters, you know what that is!

 

There goes stethacanthus!

There goes stethacanthus!

But, let’s see other sea monsters.  Next stop, the jurassic, home of sea creatures aplenty!  This fossil is of hybodus, an extinct shark that faced a true monster-liopleurodon! 

 

Fossilized hybodus

Fossilized hybodus

But liopleurodon was bigger and more dangerous, it WAS the largest carnivore ever.

 

This is a true monster!

This is a true monster!

But finally, megalodon.  He was huge!  He dwarfed great whites!  See this diagram as proof!

 

He's Huge!

He's Huge!

Green for great white, red for megalodon.  But let’s see real super-sharks.  The top most dangerous sharks are:1. great white 2. tiger 3. bull.  Bull sharks can survive in freshwater, making them even deadlier.  But sailors say they’d rather get killed by a great white then a “terrible tiger”.  But can sharks be friendly to fish?  Of course!  Check out the remora!  There are 4 genera of remoras.  Sharks don’t eat these dentists-yes, dentists.  Remoras actually clean the insides of sharks’ mouths.  So we’ve seen how sharks evolved into true killers, and seen their enemies along the way, explored the killers of the deep, and dived into the world of remoras, but the monsters we’ll see next time are bigger.  Next time, we explore the world of whales and how they evolved.

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