Pennsylvania is brimming with natural wonders, but this 54-acre riverside gem might just be the commonwealth’s best-kept ...

What makes this vista particularly special is how it captures the essence of Pennsylvania’s natural beauty in one sweeping ...

The Pennsylvania Fish and Boat Commission is monitoring invasive rusty crayfish that act like gladiators as they try to take over native species.

A study has revealed that invasive flathead catfish in the Susquehanna River are opportunistic feeders preying on various aquatic species. Their diet includes both recreationally and ...

The discovery that flathead catfish in the Susquehanna River are consuming so many rusty crayfish -- themselves an invasive species that are largely supplanting native crayfish species in the U.S ...

The Susquehanna River in southeastern Pennsylvania has massive fish and other large objects. Here's what people have found.

The Susquehanna River in southeastern Pennsylvania has massive fish and other large objects. Here's what people have found.