UNIVERSITY PARK, Pa. — Differences among the collection of bacteria and other microorganisms that live within birds’ digestive tracts — their gut microbiomes — are not primarily driven by diet ...

Differences among the collection of bacteria and other microorganisms that live within birds' digestive tracts -- their gut microbiomes -- are not primarily driven by diet diversity, contrary to a ...

“While these birds can look healthy on the outside, they’re not doing well on the inside.” “While these birds can look healthy on the outside, they’re not doing well on the inside,” Dr. Alex Bond, who ...