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That "seaweed" washing up on Texas beaches every spring and summer is Sargassum, and it is an important part of the marine and shoreline ecosystems. Learn more in this Texas Parks & Wildlife Magazine article.  Photo: Chase Fountain, TPWD

From tracking your mental health to creating an eyeglasses prescription, helping folks stay sober, and testing your cholesterol, smartphones have an ever-growing number of amazing uses. I list ten in this piece for Mental Floss .

The stretch of San Antonio River south of downtown -- and the famous Riverwalk -- has a hike and bike trail and canoe and kayak access points. The Mission Reach, as it's known, makes for a very nice paddle through areas under restoration to their former natural state and offers a new way to explore the historic missions. Read about my experience in the latest issue of Texas Highways .