Over one quarter of all known shark species are considered threatened or endangered. Sharks are apex predators in many ecosystems, and their disappearance is causing dangerous imbalances in marine ...

Paleontologists at Mammoth Cave National Park have unearthed an ancient shark species previously unknown to science.

Marine biologist Alan Deidun uploads photo of pile of catshark bycatch being sold in Xlendi, voicing his frustration at the ...