(pages provided with scripture references refer to the LIVE Teen Study Bible, New Living Translation.)
People think that the shark’s skin is really smooth, but it’s not. They have denticles on their skin, made from the same material as their teeth. If you rub your hand one way, it feels smooth, but the opposite way it feels like sandpaper. On large sharks, you could actually get cut by their skin. That has nothing to do with our lesson, but be warned: Be careful when you pet a shark.
When we dissected our shark (Yes, we dissected a real dogfish shark), we looked at some key features: nares, spiracles, gill slits, lateral line, dorsal spines, Ampullae of Lorenzini, stomach, liver, and intestine. We are going to focus on a few of these features: (more…)
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