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Elated woman with curly hair, eyes closed, fists clenched in a gesture of victory or celebration, laughing with joy against a yellow background
The origin of life on Earth. Abstract variation on theme of life originated in water 3.8 billion years ago. Abiogenesis. Coacervates (spontaneous generation, molecular compound in primordial soup)
Francesco Redi's experiment: flies are necessary to produse flies: they do not arise spontaneously from rotting meat. Spontaneous generation.
Spontaneously Combustible warning sign on a wall
portrait of a young woman laughing outdoors on a sunny day

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