Vincent, Elio, and Michael discuss a symbiosis between a nitrogen-fixing cyanobacteria and a single-celled eukaryotic alga.

Links for this episode:

• Unicellular cyanobacterium and alga symbiosis (Science)
• Diversity of nitrogen-fixing cyanobacterium and its host (Environ Micro)
• Talmudic Question #4 (answer)
• Talmudic Question #2
• Coccolithophore (Wikipedia)

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