An unusual symbiosis of a ciliate, green alga, and purple bacterium
The intracellular purple sulfur bacterium ‘Candidatus Thiodictyon intracellulare’ has lost the ability to oxidize sulfur and now supplies a ciliate with energy from photosynthesis.
The extremely rare cave-dwelling albino fish with no eyes, the Mexican blindcat, has previously only been known to exist in Mexico.
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