Fish News

December 22, 2025

Top Headlines

New Fossils in Qatar Reveal a Tiny Sea Cow Hidden for 21 Million Years

Dec. 12, 2025 Fossils from Qatar have revealed a small, newly identified sea cow species that lived in the Arabian Gulf more than 20 million years ago. The site contains the densest known collection of fossil sea cow bones, showing that these animals once thrived ...

New Research Uncovers Hidden Divide in West Coast Killer Whales

Nov. 20, 2025 Scientists confirmed that West Coast transient killer whales actually form two separate groups split between inner and outer coastal habitats. Inner-coast whales hunt smaller prey in shallow, maze-like waterways, while outer-coast orcas pursue large ...

A Crisis Deepens as African Penguins Compete with Fishing Fleets for Food

Nov. 18, 2025 During years of scarce fish, African penguins crowd into the same areas as commercial fishing vessels, heightening competition for dwindling prey. A new metric called “overlap intensity” shows how many penguins are affected and is already ...

DNA in Seawater Reveals Lost Hammerhead Sharks

Nov. 8, 2025 A revolutionary eDNA test detects endangered hammerhead sharks using genetic traces left in seawater, eliminating the need to capture or even see them. This powerful tool could finally uncover where these elusive species still survive, and help ...

Scientists Just Found Out How Corals Rebuild Themselves on the Reef

Oct. 29, 2025 Researchers at QUT uncovered how corals reattach to reefs through a three-phase process involving tissue transformation, anchoring, and skeleton formation. Differences among species reveal why some corals grow and attach faster than others. ...

From Gentle Giants to Ghostly Hunters, Sharks Face an Unseen Peril

Oct. 5, 2025 New research reveals that deep-sea mining could dramatically threaten 30 species of sharks, rays, and ghost sharks whose habitats overlap with proposed mining zones. Many of these species, already at risk of extinction, could face increased dangers ...

Breakthrough Wetsuits Slash Shark Attack Injuries and Save Lives

Sep. 25, 2025 Shark experts tested four innovative wetsuit materials to measure how well they reduce shark-bite injuries. The results show they can lessen major trauma, blood loss, and even save lives when compared to standard neoprene. While not a perfect ...

Scientists Just Found Hidden Parasitic Wasps Spreading Across the U. S.

Sep. 15, 2025 Researchers discovered two new parasitic wasp species living in the U.S., tracing their origins back to Europe and uncovering clues about how they spread. Their arrival raises fresh questions about biodiversity, ecological risks, and the role of ...

Tiny Skaters Beneath the Arctic Ice Rewrite the Limits of Life

Sep. 12, 2025 Hidden within Arctic ice, diatoms are proving to be anything but dormant. New Stanford research shows these glass-walled algae glide through frozen channels at record-breaking subzero temperatures, powered by mucus-like ropes and molecular motors. ...

Hungry Flathead Catfish Are Changing Everything in the Susquehanna

Sep. 9, 2025 Flathead catfish are rapidly reshaping the Susquehanna River’s ecosystem. Once introduced, these voracious predators climbed to the top of the food chain, forcing native fish like channel catfish and bass to shift diets and habitats. Using stable ...

In the Dark for 11 Million Years: How Blind Cavefish Rewrote Evolution

Aug. 29, 2025 Yale scientists discovered that cavefish species independently evolved blindness and depigmentation as they adapted to dark cave environments, with some lineages dating back over 11 million years. This new genetic method not only reveals ancient ...

Why Most Whale Sharks in Indonesia Are Scarred by Humans

Aug. 28, 2025 Whale sharks in Indonesia are suffering widespread injuries, with a majority scarred by human activity. Researchers found bagans and boats to be the biggest threats, especially as shark tourism grows. Protecting these gentle giants may be as simple ...

Latest Headlines

updated 12:22pm EST

Ancient Oceans Were Ruled by Super Predators Unlike Anything Today

Dec. 19, 2025 Long before whales and sharks, enormous marine reptiles dominated the oceans with unmatched power. Scientists have reconstructed a 130-million-year-old marine ecosystem from Colombia and found ...

From Biting Flies to Feathered Dinosaurs, Scientists Reveal 70 New Species

Dec. 19, 2025 Researchers announced over 70 new species in a single year, including bizarre insects, ancient dinosaurs, rare mammals, and deep-river fish. Many were found not in the wild, but in museum ...

Fossils Reveal a Massive Shark That Ruled Australia in Dinosaur Times

Nov. 22, 2025 Around 115 million years ago, northern Australia’s seas hosted a colossal shark that rewrites what we thought we knew about early ocean predators. New fossil discoveries show that modern-type ...

Ancient Fish With Human-Like Hearing Stuns Scientists

Nov. 3, 2025 Long ago, some saltwater fish adapted to freshwater — and in doing so, developed an extraordinary sense of hearing rivaling our own. By examining a 67-million-year-old fossil, researchers from UC ...

Killer Whales Perfect a Ruthless Trick to Hunt Great White Sharks

Nov. 3, 2025 In the Gulf of California, a pod of orcas known as Moctezuma’s pod has developed a chillingly precise technique for hunting young great white sharks — flipping them upside down to paralyze and ...

Scientists Discover 14 Strange New Species Hidden in the Deep Sea

Nov. 2, 2025 Scientists are revolutionizing how new marine species are described through the Ocean Species Discoveries initiative. Using advanced lab techniques, researchers recently unveiled 14 new species from ...

Scientists Just Found Real Teeth Growing on a Fish’s Head

Oct. 16, 2025 Scientists discovered true teeth growing on the head of the spotted ratfish, a distant shark relative. The toothed structure, called a tenaculum, helps males hold onto females during mating. Genetic ...

Glowing Shark and Hidden Crab Found Deep Off Australia

Oct. 9, 2025 In a stunning glimpse into the mysteries of the deep, scientists have uncovered two new marine species off Western Australia—a glowing lanternshark and a tiny porcelain crab. The discoveries, made ...

A Pink Bumpy Snailfish Was Just Discovered Miles Beneath the Ocean

Sep. 26, 2025 Scientists have identified three new species of deep-sea snailfish, including the strikingly pink “bumpy snailfish,” thanks to MBARI’s advanced technology and global collaborations. Found ...

Ghost Sharks Grow Teeth on Their Heads to Mate

Sep. 5, 2025 Ghost sharks have evolved rows of true teeth on a bizarre forehead rod used for mating. Fossil and genetic evidence revealed the tenaculum’s teeth develop the same way as those inside the mouth, ...

Fossil Reveals a 310-Million-Year-Old Fish That Ate With a Hidden Second Jaw

Sep. 4, 2025 Scientists uncovered a 310-million-year-old fish fossil with a “tongue bite,” teeth on the roof and floor of its mouth that worked like a second jaw. This adaptation, previously thought to have ...

Sharks’ Teeth Are Crumbling in Acid Seas

Aug. 27, 2025 Even sharks’ famous tooth-regrowing ability may not save them from ocean acidification. Researchers found that future acidic waters cause shark teeth to corrode, crack, and weaken, threatening ...

Bumble Bees Balance Their Diets With Surprising Precision

Aug. 27, 2025 Bumble bees aren’t random foragers – they’re master nutritionists. Over an eight-year field study in the Colorado Rockies, scientists uncovered that different bee species strategically balance ...

Scientists Found the Missing Nutrients Bees Need — Colonies Grew 15-Fold

Aug. 23, 2025 Scientists have developed a breakthrough food supplement that could help save honeybees from devastating declines. By engineering yeast to produce six essential sterols found in pollen, researchers ...

Tiny Ancient Whale With a Killer Bite Found in Australia

Aug. 13, 2025 An extraordinary fossil find along Victoria’s Surf Coast has revealed Janjucetus dullardi, a sharp-toothed, dolphin-sized predator that lived 26 million years ago. With large eyes, slicing teeth, ...

Great White Sharks Have a DNA Mystery Science Still Can’t Explain

Aug. 16, 2025 Once on the brink during the last ice age, great white sharks made a remarkable recovery globally, but their DNA reveals a baffling story. Classic migration explanations fail, leaving scientists with ...

DNA from the Deep Reveals a Hidden Ocean “superhighway”

Aug. 7, 2025 Deep beneath the ocean's surface, a groundbreaking DNA study reveals that the deep sea is far more globally connected than once thought. By analyzing thousands of brittle stars preserved in ...

The Heatwave That Shattered Ecosystems, Starved Whales, and Drove Fish North

July 21, 2025 A scorching marine heatwave from 2014 to 2016 devastated the Pacific coast, shaking ecosystems from plankton to whales and triggering mass die-offs, migrations, and fishery collapses. Researchers ...

Corals in Crisis: A Hidden Chemical Shift Is Reshaping Hawaiian Reefs

July 16, 2025 Hawaiian coral reefs may face unprecedented ocean acidification within 30 years, driven by carbon emissions. A new study by University of Hawai‘i researchers shows that even under conservative ...

This Shark Can Change Color — Thanks to Hidden Nano Mirrors in Its Skin

July 11, 2025 Blue sharks possess a secret hidden in their skin: a sophisticated arrangement of microscopic crystals and pigments that create their brilliant blue appearance — and may allow them to change color. ...

Brighter, Bolder, Hotter: Why Female Guppies Can't Resist Orange

July 10, 2025 Male guppies that glow with more orange aren’t just fashion-forward — they’re also significantly more sexually active. A UBC study reveals that brighter coloration is linked to virility and is ...

No Training Needed: How Humans Instinctively Read Nature’s Signals

July 10, 2025 People can intuitively sense how biodiverse a forest is just by looking at photos or listening to sounds, and their gut feelings surprisingly line up with what scientists ...

Hovering Fish Burn Twice the Energy—study Shocks Scientists

July 8, 2025 Hovering fish aren’t loafing—they burn twice resting energy to make micro-fin tweaks that counteract a natural tendency to tip, and body shape dictates just how costly the pause is. The discovery ...

Tiny Creatures, Massive Impact: How Zooplankton Store 65 Million Tonnes of Carbon Annually

June 27, 2025 Zooplankton like copepods aren’t just fish food—they’re carbon-hauling powerhouses. By diving deep into the ocean each winter, they’re secretly stashing 65 million tonnes of carbon far below ...

Rainbow Reefs Revealed: The Secret 112-Million-Year Saga of Glowing Fish

June 17, 2025 Scientists have uncovered that fish biofluorescence a captivating ability to glow in vivid colors has ancient roots stretching back over 100 million years. This trait evolved independently in reef ...

Toxic Tides: Centuries-Old Mercury Is Flooding the Arctic Food Chain

June 13, 2025 Despite falling global mercury emissions, mercury levels in Arctic wildlife continue to rise. A new study reveals that ocean currents are delivering legacy mercury pollution from distant regions like ...

Sex Swap in Seconds: The Fish That Takes Charge and Changes Gender

June 27, 2025 Remove the top male spotty fish and, within minutes, the next-in-line female morphs into the tank s new tyrant charging and nipping rivals while her body quietly begins a weeks-long transition to ...

Cleaner Fish: Tiny Healers or Hidden Spreaders in Coral Reef Ecosystems?

June 12, 2025 Reef "beauty salons" staffed by tiny cleaner fish aren t just for parasite removal they may also shape the microbial life of the entire ecosystem. A fascinating new study shows these ...

Satellite Tracking of 12,000 Marine Animals Reveals Ocean Giants Are in Trouble

June 7, 2025 A massive global collaboration has tracked over 12,000 marine animals from whales to turtles to create one of the most detailed movement maps of ocean giants ever assembled. The project, MegaMove, ...

Birds Nested in Arctic Alongside Dinosaurs

May 29, 2025 Spring in the Arctic brings forth a plethora of peeps and downy hatchlings as millions of birds gather to raise their young. The same was true 73 million years ago, according to a new article. The ...