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 Nile River passes through several countries on the African continent and is the longest river in Africa at over 4,000 miles long. It's famously been known as a giver of life to the region, but ...

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 ...

In a scientific first, researchers have captured astonishing video of young Japanese eels escaping after being swallowed by a predatory fish. When you purchase through links on our site, we may earn ...