Fishery
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The Egg Test for Salinity is a Traditional Method Used in Brine Making
Here’s how it works: 🧪 The Egg Test: How It Works 🧂 If the egg sinks: 🧂 If the egg floats: 🔬 The Science Behind It This is a folk… Read more.
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Egg Case (mermaid’s Purse)
An egg case or egg capsule, often colloquially called a mermaid’s purse, is the casing that surrounds the eggs of oviparous chondrichthyans. Living chondricthyans that produce egg cases include some sharks, skates and chimaeras. Egg cases typically contain one embryo, except for big… Read more.
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Humans have been interested in echinoid fossils (the fossilised remains of sea urchins) for millennia, considering them lucky and imbuing them with magical powers linked to their deities
A folk tradition in Denmark and southern England imagined sea urchin fossils to be thunderbolts, able to ward off harm by lightning or by witchcraft, as an apotropaic symbol. Another version supposed they were… Read more.
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