The a lot maligned rat isn’t a creature many would go along with coral reefs. But scientists learning reefs on tropical islands say the animals directly threaten the survival of these ecosystems. From a record: A staff running at the Chagos Islands within the Indian Ocean discovered that invasive rats at the islands are a “big problem” for coral reefs. Rats decimate seabird populations, in flip decimating the quantity of chook droppings — a herbal coral fertiliser. The findings are printed in Nature. Scientists now recommend removing rats from all the islands to offer protection to those subtle marine habitats.