Giant squids live in abyssal depths. 

There are many creatures (like fish) that live in the ocean.  The animals can be very dangerous even though the sea is peaceful.  Many are safe for humans though.   

Whale sharks are harmless.  They are call whales because of size.

Blue whales are thought dangerous but they actually are harmless. 

Most whales eat krill. 

Almost all whales are safe for humans. 

Blue whales are the largest creatures living on earth.  They are often thought dangerous. 

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