Saturday Citations: The cheapness horizon of electric batteries; the battle-worthiness of ancient armor; scared animals

Sometimes, science requires traveling into hazardous environments; sometimes it requires a vast influx of state capital and an army of researchers and technicians. But sometimes, science has to call in the Marines. We reported on that this week, along with news about a new cathode for electric batteries made from an Earth-abundant element that will stun you into silence, and the No. 1 fear of animals globally.

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