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Old 07-27-2011, 09:52 PM   #189
Softhearted
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Default They might be the smallest of all living organisms but they are so important in the cycle of life!

Bacteria helped early animals to breathe:

Microbial mats might have functioned as oxygen oases for primitive multicellular life.

http://www.nature.com/news/2011/1105....2011.290.html


Gingras, M. et al. (2011). Possible evolution of mobile animals in association with microbial mats. Nature Geoscience, 4: 372-375.
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