What magnetic iron mineral is found in the shell of the scaly-foot
Chapter 1

The shapeshifting metals

Chapter 2

The self-healing metals

Chapter 3

The bio-hybrid bridge

Chapter 4

Nature's ironclad life

Ch 4 · Nature's ironclad life
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007skaty Leafcutter ants and spiders grow metal-infused jaws and fangs.

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007skaty Zinc-Hardened Insect Tools

She's drilling down with a tiny tool of zinc, straight through the unripe fig!

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To withstand a harsh environment, we must absorb its toughest elements.

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007skaty Microscopic compasses made of iron crystals inside magnetotactic bacteria

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The deep-sea snail with an iron shell

007skaty At depths over 2,400 meters, Chrysomallon squamiferum incorporates greigite and pyrite into its armor, making this snail magnetic

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Marine worms with metallic fangs

007skaty Predatory Glycera marine worms grow jaws containing ten percent copper mineral.

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Microscopic compasses made of iron crystals
BETA

007skaty Align microscopic iron crystals to discover how bacteria navigate using Earth's magnetic field.

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Fun Fact

Beaver teeth iron: Beavers have bright orange front teeth because their enamel is reinforced with iron, making them tough enough to chop down entire trees without breaking!

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Glossary
scaly-foot gastropod (noun)
A species of deep-sea mollusk that incorporates iron sulfide into its shell and scales. Researchers first discovered this iron-plated animal in 2001 at the Kairei hydrothermal vent field.

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Gossip

Which animal metal-defense is coolest?

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Quiz

What magnetic iron mineral is found in the shell of the scaly-foot gastropod?

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007skaty The predatory marine bloodworms of the genus Glycera

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Quiz

In which ocean's deep-sea hydrothermal vents was the scaly-foot gastropod first discovered?

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007skaty The scaly-foot gastropod survives near scalding deep-sea vents.

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Quiz

What is the name of the natural mineral form of copper found in the bloodworm's metallic fangs?

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Quiz

What metallic element makes up up to 10% of the composition of a marine bloodworm's jaws?

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Quiz

What magnetic mineral do these bacteria most commonly synthesize to align with Earth's magnetic field?

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Quiz

What is the name of the internal chain of magnetic crystals that magnetotactic bacteria use as a compass?

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Quiz

Which heavy metals are commonly incorporated into the mandibles of leafcutter ants to keep them sharp?

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Quiz

How does the metal-hardening of an insect's jaw compare to human-made materials?

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