Mutualistic fermentative digestion in the gastrointestinal tract: diversity and evolution.

@article{Mackie2002MutualisticFD,
  title={Mutualistic fermentative digestion in the gastrointestinal tract: diversity and evolution.},
  author={R. I. Mackie},
  journal={Integrative and comparative biology},
  year={2002},
  volume={42 2},
  pages={319-26}
}
All animals, including humans, are adapted to life in a microbial world. Anaerobic habitats have existed continuously throughout the history of the earth, the gastrointestinal tract being a contemporary microniche. Since microorganisms colonize and grow rapidly under the favorable conditions in the gut they could compete for nutrients with the host. This microbial challenge has modified the course of evolution in animals, resulting in selection of complex animal-microbe relationships that vary… CONTINUE READING