Bacterial Diversity Short-Chain Fatty Acids Microbial Diversity Avian Gut Microbiome Bowel Movement Study Machine Learning Gut Health Antibiotic Resistance Antibiotics Peptide Antibiotics Antibiotic Discovery Pathogen-Host Interactions Therapeutics Aggression Drug-Microbiome Interactions Bacterial Enzymes Lactobacillus murinus Immune System Bacterial Interactions Circadian Rhythms Primate Evolution Bacterial Strains Impact of CWD Fecal Samples Biomarkers Bifidobacterium Mouse Models Akkermansia muciniphila Fungal Overgrowth