• 1 · Religion and Magic
• 2 · Nature
• 3 · Human Being, Man in General
• 4 · Society, Civilization, Culture
• 5 · Abstract Ideas and Concepts
• 6 · History
• 7 · Bible
• 8 · Literature
• 9 · Classical Mythology and Ancient History

• Top
• 2 · Nature
• 25 · earth, world as celestial body
• 25F · animals
• 25F4 · reptiles
• 25F42 · snakes
• 25F42(...) · snakes (with NAME)
• 25F42(VIPER) · snakes: viper

25F42(VIPER)(+4) · snakes: viper (+ animal behaviour)

• 25F42(VIPER)(+41) · snakes: viper (+ birth of an animal)
• 25F42(VIPER)(+42) · snakes: viper (+ feeding and care of young)
• 25F42(VIPER)(+47) · snakes: viper (+ animal psychology)