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| | | | | | | | | | | | | | | | Monster Fish: Catfish King | - NEW - TONIGHT at 10P et/pt | | Aquatic ecologist Zeb Hogan travels to Spain in search of the invasive Wels catfish - a monster fish with a voracious appetite that is capable of growing over eight feet long. Watch a Preview >> | | | | | | | | | | | | | | | | | | And Man Created Dog | FRIDAY at 9P et/pt | | If humans were as varied as dogs, we would range in height up to 22 feet tall or could weigh more than 1,000 pounds. Nat Geo traces the genetic journey from wolf to dog. Watch a Preview >> | | | | | | | | | | | | | | | | | | | | | Fish With Fanged Tongue A fish with teeth on its tongue, a venomous fireworm, and a "Venus flytrap" are among thousands of species recently found. Read Article >> | | | | | | | | | Water Use Calculator The average American lifestyle is kept afloat by nearly 2,000 gallons of water a day, twice the global average. How much do you use? What's Your Footprint >> | | | | | | | | | | | | | | |
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