Savannah

Researchers working off coastal Georgia have discovered what could be three new species of bottom-dwelling creatures known as sea squirts. The diminutive creatures — also known as tunicates — were recently found at Gray’s Reef National Marine Sanctuary, a reef 28km east of Georgia’s Sapelo Island.

The small frogs that croaked in Diane Butler’s backyard pond had been silenced and her goldfish were disappearing. But she had bagged the culprit, and stashed the body in her freezer. Butler’s capture of an 11cm Cuban tree frog in coastal Savannah has caused a nervous stir among wildlife biologists in Georgia and Florida.