That isn't even possible. Your body is made of them. If you had none then you wouldn't be existing.
Answer: A mollusk accidentally imported from Europe. They clog pipes and water ways.
Explanation:
Only the birds with the largest of beaks are able to eat the toughest, biggest, and spine covered seeds. Which is not right because some other Galapagos Birds might have some other way eat those seeds with their finches
Just ask a question you have a problem understanding lol
