HELP!!!

Refer to the Newsela article "Climate Change in Hawaii and U.S. Tropical Islands."

What is the author's purpose in mentioning wildlife in the article?

A. to suggest that some marine life will not be affected by climate change

B. to explain that island ecosystems and the habitats they live in are threatened by climate change

C. to put forth the theory that climate change has less of an impact on animals than on humans

D. to suggest that climate change will only affect coral reefs but not ecosystems on land