Topic: Mark Hay

ATLANTA, Oct. 15 (UPI) -- U.S. scientists say they observed significant recovery of an endangered coral reef when they managed the reef's diversity of fish.

ATLANTA, Sept. 5 (UPI) -- Scientists studying the green porcelain crab said it is having both good and bad effects on oyster and mussel populations off the southeast U.S. coast,

ATLANTA, Oct. 12 (UPI) --