Deep in the ocean, a giant fish does something no one expects—it produces milk to feed its young. This behavior is almost unheard of in fish, blurring the line between species and survival strategies.

"It's such an unexplored area." Scientists discover over 100 new species deep below Australian sea: 'We need to understand … ...

Add Yahoo as a preferred source to see more of our stories on Google. orange roughy fish on ice at market - Fotokon/Shutterstock It's long been a staple on seafood menus and in frozen fish fillets at ...

This bizarre-looking fish may seem otherworldly, but every part of its design solves a real problem: how to see, hunt and ...

A new study offers the first direct evidence that deep-dwelling mesopelagic fish, which account for up to 94% of global fish biomass, excrete carbonate minerals at rates comparable to shallow-water ...

These three fish are freaks, phantoms and mysteries of the deep. Here’s what we’ve learned from the rare glimpses we’ve had of their lives. The deep sea is one of Earth’s final frontiers. Given its ...

After years of deep-sea sleuthing, National Geographic Explorer Katy Croff Bell has created a treasure map. It’s not drawn on ...

Barreleye fish are named for their unique, barrel-shaped eyes. These eyes can rotate, allowing the fish to look both upward and straight ahead. Their eyes also have bright green lenses protected ...

A research expedition into the Coral Sea has uncovered more than 110 previously unknown fish species and invertebrates, with ...

What started as a quiet night offshore turned into a record-challenging moment for a Florida angler fishing 120 miles off the Alabama coast. Around 4 a.m. on Aug. 1, Taylor Guidry stepped onto the ...

New research sheds light on the overlooked contribution of the ocean’s most abundant fish to marine carbon cycling. The findings open new avenues for studying deep-sea carbon dynamics and may improve ...