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On Air


Assignment Discovery

Friday, 9 a.m. Discovery

"Biomes: Islands and Evolution." Visit the Galapagos Islands and the native residents that helped Charles Darwin formulate his theory of evolution. Hop from Sulawesi to Java and Anak Krakatoa to learn how their ecosystems have developed.

Outdoors Maryland

Saturday, 5:30 p.m. WMPT

"Mountain Shadow." Though its range extends as far east as northern Baltimore County and as far south as Montgomery County, the Bobcat is a mystery to most Marylanders. Yet, the wildcat is thriving in Maryland. In this story, Maryland Department of Natural Resources trapper Robert Colona walks the Western Maryland mountains in search of the bobtailed cat.

"Chesapeake Releaf." Many of the streams, creeks and rivers that eventually flow into the Chesapeake Bay originate far from their destination. So, it's hard for many people to understand how pollution of streams and rivers affects the bay, arguing that distance equals safety. Yet, experts say these tributaries deliver plenty of trouble to the Chesapeake in the form of silt and agricultural runoff. This segment, specially underwritten by the Chesapeake Bay Trust, tells the story of how volunteers and organizations around the state are trying to clean up waterways in the Chesapeake Bay watershed by planting trees to filter harmful pollutants before they flow into the bay.

"Go West!" It wasn't that long ago that Highway 68 cut through the Maryland mountains to make way for western-bound tourists. That means some of the state's most beautiful, peaceful scenery is within easy reach for anyone who cares to camp, fish or ski.

Outdoors Maryland

Tuesday, 7:30 p.m. (Repeats Thursday, 5:30 a.m., and Jan. 8, 5:30 p.m.) WMPT

"A Crew of One." Hundreds of deep-sea fishermen and -women descend on Ocean City each year for the annual White Marlin Tournament. Crews join forces and hire fishing boats in hopes of winning a lot of cash for catching the most and biggest marlin. "Outdoors Maryland" photographers travel with a man who fished the Gulf Stream waters over the Baltimore Canyon as a crew of one.

"The Casting Call." Anglers who surf fish claim it's more art than science - knowing how the waves break, discovering the delicate balance between temperature, bait and time and tide. On Assateague Island at the right time of year, the right conditions can trigger Drum-mania as anglers race to catch the greatest living prize the Atlantic surf has to offer: the Red Drum.

"Salt H20 and a Fly." An intriguing twist on an old sport: saltwater fly-fishing on the Chesapeake.

Sky Watch

Thursday, 8:33 a.m., WYPR (88.1 public radio)

"Replacing the Hubble Telescope With the James Webb." Hosts are Jim O'Leary, senior director of technology, IMAX and Davis Planetarium at the Maryland Science Center, and Carol Christian, deputy head of the Community Missions Office of the Space Telescope Science Institute.

Online blog

Read Sun science writer Frank Roylance's weather and astronomy blog, updated daily at

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