The early life stages of fish are marked by the rapid development of the digestive system, which plays a critical role in transitioning from endogenous nutrition, using yolk reserves, to exogenous ...

The digestive tract of teleost fish exhibits an impressive degree of histological diversity that reflects the range of feeding strategies found in this group. Detailed microscopic studies have ...

It’s become an all-too-common variety of news story: Dead whales whose digestive systems are clogged with plastic. Increasing numbers of seabirds eating plastic, often with dire consequences. Ditto ...

The tough little egg made it all the way through the digestive system of a coscoroba swan like this one. TonyBaggett / iStock Killifish eggs are known for their resilience: They’ve been found thriving ...