Could fun in the sun – mean grief in the reef? This is Sandra Tsing Loh with the Loh Down on Science. The sun’s ultraviolet rays cause suntans, sunburns… and an increased risk of skin cancer. Sunscreen protects our skin by using chemicals like oxybenzone to absorb harmful UV rays.
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What do island paradises and diapers have in common? This is Sandra Tsing Loh with the Loh Down on Science, with the poop on coral-reef islands! These islands build up from sediment deposited over time. But where does that sediment come from? Sometimes, from parrotfish! To be specific, parrotfish poop!
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Where’s the Terminator when you really need him? This is Sandra Tsing Loh with the Loh Down on Science, and an ecosystem under attack. Australia’s Great Barrier Reef is truly a wonder of the natural world. But it faces a dangerous interloper: The Crown of Thorns starfish, or “COT” for
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