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Holder’s bioluminescence trail leads to one clue

The text does not contain an answer about Charles Frederick Holder's weirdest natural history observations or specific bioluminescence facts, but it does show that he wrote on topics like "Living Lights," "Remarkable Phosphorescent Animals," "The Tameness of Wild Animals," "Vocal Sounds of Fishes," and "Famous Basaltic Columns."[3] His biography also says his books combined accurate scientific detail with exciting narratives, and that he wrote widely on animate nature, marine zoology, and animal life.[2][5]