Answer:
A pony trots his way through the world on these.
Microparasite expert at sucking the blood of mammals and birds
I am a mammal that lives in the sea. I have flippers and am known for my intelligence. What am I?
What kind of dog chases anything red?
What has a brown coat, a long tail, and lives in house or shed but most active while you're in bed?
I hold two meanings. With one I may be broken, with the other I hold on. What am I?