Consider the ‘magnetite hypothesis’ described in question 10.1. What evidence could you look for to support or rebut this hypothesis? Question 10.1 Scientists are not sure how some species of birds...

Consider the ‘magnetite hypothesis’ described in question 10.1. What evidence could you look for to support or rebut this hypothesis?

Question 10.1

Scientists are not sure how some species of birds are able to navigate with such accuracy when migrating thousands of miles. One theory is that the birds’ brains contain molecules – called magnetite – which contain iron and which somehow enable the bird to detect the Earth’s magnetic fi eld in much the same way that the needle of a compass does. What other possible explanations can you think of?