Giant barrel sponges are hijacking Florida’s coral reefs
Change could spell bad news for animals that live there
![Diver with giant barrel sponge](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/09/091615_ss_giantsponge-main_free.jpg?fit=860%2C460&ssl=1)
TAKEOVER Between 2000 and 2012, the numbers of giant barrel sponges (one from the Bahamas shown) in the Florida Keys swelled.
J.R. Pawlik/UNCW