Orcas food chain

I was interested in orcas  because of  their unique food chain and their unpredictable behavior and how their intelligent work like. I have never seen one alive but I hope so I would. Their colour is also special.

In my mind orcas are unique by. . .

• their food chain  
• their body colour

Let me tell you the food chain that I made

Orcas use echolocation to catch seals. When using echolocation orcas make buzzing sounds which makes it quite difficult for them to catch food. What  do seals eat? They eat fish,They have eat lots of fish to keep their body warm. What do fish eat? They eat worms and plankton. Fish have an easy life of being predator to worms and plankton. What do worms eat? They suck  tiny pieces of tiny plants. What do plants eat?  They eat water minerals. That is the cut  part of our food chain.

The unique part of  the body colour is that it does not only have  black, white and gray it also has the colour purple you could find it beside the dorsal fin.

And that's why I think orcas are an unique animal.