Scientists have uncovered why big predators like sharks spend so much time in the ocean’s twilight zone. The answer lies with ...

For decades, oceanographers have known that something did not add up in the deep sea. Huge predators like sharks and tunas were spending long stretches in the dim “twilight zone,” yet the known prey ...

A rare deep-sea fish regarded as a harbinger of doom has washed up on a beach in the Canary Islands. The oarfish was discovered by beachgoers in Lanzarote on 10 February, sparking fears among the ...

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 ...

At the bottom of the world’s trenches, there’s a fish that shouldn’t exist. Here’s how it earned the title of the ...

This is so dang cool! Researchers off the coast of Tenerife, Spain found something truly miraculous. And now they’re sharing their find with the world! Video captured by the team shows an adult ...

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 ...

A group of beachgoers encountered an interesting-looking fish as it surfaced in shallow waters on a beach in Mexico. The silvery, iridescent oarfish was captured on video washing onto the shores of ...

The goblin shark (Mitsukurina owstoni) is among the most unusual and least understood predators in the ocean. Deep-dwelling, ...

Fish species living in the deep sea feature a surprisingly large range of body shapes that evolved in different ways and at different rates depending on where the fishes live in the ocean, new ...

The fish was found at 200 to 2,000 meters below the surface. At least 16 types of recently discovered deep-sea fish are among the darkest creatures ever found, according to a study published Thursday.

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 ...