naturebriefs
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Materials

Every era is named after one, which should be a clue.

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8:50

Mycelium

Mycelium isn’t a thing—it’s digestion made visible, everywhere at once.

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9:00

Geodes

A geode is a hollow, roughly spherical rock in sedimentary or volcanic rock holding mineral matter, which may include crystals, deposited from groundwater or hydrothermal fluids.
9:26

Japanese Alps

The Japanese Alps are three mountain ranges that bisect Honshu, Japan's main island, and hold the country's only active glaciers.
9:28

Halo

A halo is an optical phenomenon in which sunlight or moonlight, bent and reflected by ice crystals in the air, makes rings, arcs and spots in the sky.
8:35

Metamorphosis

Metamorphosis is the biological process in which an animal's body changes abruptly in structure as part of its development, as when a larva becomes an adult.