Learn essential sailing techniques in this Win-on-Wind tutorial! We cover identifying a Barbare 44 sloop, correctly positioning the main sail, and the critical importance of preventer placement to prevent boom damage. Avoid costly mistakes with our expert guidance and discover the dangers of incorrect preventer setup. #SailingTutorial #WinOnWind #SailingTips #Yachting #BoatSafety #PreventerPlacement #SailingTechniques #Barbare44 #SailingLessons #BoatMaintenance

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A hit of decompression illness causes scuba diver Jill Heinerth to reflect on her life as a cave diver. Her book, Into The Planet wiith gripping storytelling, and radiating with intimacy will transport you deep into the most exquisite, untouched corners of the earth, where fear must be reconciled and the innermost parts of the human condition are revealed. Original music by Xavier Fleuransceau http://www.IntoThePlanet.com

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The yellow stingray (Urobatis jamaicensis) is a species of stingray in the family Urotrygonidae, found in the tropical western Atlantic Ocean from North Carolina to Trinidad. This bottom-dwelling species inhabits sandy, muddy, or seagrass bottoms in shallow inshore waters, commonly near coral reefs. Reaching no more than 36 cm (14 in) across, the yellow stingray has a round pectoral fin disc and a short tail with a well-developed caudal fin. It has a highly variable but distinctive dorsal color pattern consisting of either light-on-dark or dark-on-light reticulations forming spots and blotches, and can rapidly change the tonality of this coloration to improve its camouflage. Relatively sedentary during the day, the yellow stingray feeds on small invertebrates and bony fishes. When hunting it may undulate its disc to uncover buried prey, or lift the front of its disc to form a "cave" attractive to shelter-seeking organisms. This species is aplacental viviparous, meaning that the developing embryos are sustained initially by yolk and later by histotroph ("uterine milk"). Females bear two litters of up to seven young per year in seagrass, following a gestation period of 5–6 months. Though innocuous towards humans, the yellow stingray can inflict a painful injury with its venomous tail spine. This species is taken as bycatch by commercial fisheries and collected for the aquarium trade; it may also be negatively affected by habitat degradation. Nevertheless, it remains common and widespread, which has led the International Union for Conservation of Nature (IUCN) to list it under Least Concern.

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