One bluefin tuna that swam the Pacific Ocean three times in 600 days—just your everyday 24,850-mile commute.
A "dead zone"—a complete absence of large marine animals—located at the epicenter of the 2004 tsunami off Sumatra in the Indian Ocean.
Data about 2,700 salmon that were implanted with tiny electronic chips and tracked via seabed stations to learn more about the fish after they leave the rivers where they were spawned. "Until now salmon have just vanished into the big black box of the ocean," lead scientist David Welch told reporters. For more information, visit www.coml.org.