Search results for Ray fish

Plants & Animals Apr 08, 2021

Marine life is fleeing the equator to cooler waters—this could trigger a mass extinction event

The tropical water at the equator is renowned for having the richest diversity of marine life on Earth, with vibrant coral reefs and large aggregations of tunas, sea turtles, manta rays and whale sharks. The number of marine ...

Ecology Mar 31, 2021

Seagrasses turn back the clock on ocean acidification

Spanning six years and seven seagrass meadows along the California coast, a paper published today from the University of California, Davis, is the most extensive study yet of how seagrasses can buffer ocean acidification.

Plants & Animals Mar 29, 2021

Nearly 40 sharks and rays reclassified as threatened, including one species of ray already possibly extinct

New updates on the conservation status of sharks and rays released today by the International Union for Conservation of Nature (IUCN) show that 39 additional species are now facing a risk of extinction in the wild. This takes ...

Ecology Mar 24, 2021

Searching the ocean for one of the world's rarest whales

Crowded into a tiny plane, 1,000 feet above the water off Georgia, the surveyors look down in search of a disturbance—a long splash, or a dark patch amid all that blue.

Evolution Mar 24, 2021

Scaled, armored or naked: How does the skin of fish evolve?

Usually scaled, the skin of fish can also be naked or made up of bony plates that form an armor, sometimes even covered with teeth. But how has this skin evolved over the ages? To answer this question, researchers at the ...

Evolution Mar 18, 2021

The 'eagle shark' that glided through ancient seas

Scientists have discovered a new species of ancient winged shark, which fed on plankton eons before the emergence of giant manta rays, according to new research published Thursday.

Evolution Mar 18, 2021

Ancient vertebrates had everything they needed to walk underwater millions of years before the transition to dry land

In 2018, the little skate, a ray-like fish the size of a skillet caused a big wave in evolutionary biology. Researchers from New York University found that little skates, which scuttle along the sea floor on two leg-like ...

Plants & Animals Mar 10, 2021

Warming oceans mean smaller baby sharks struggle to survive

The warming of worldwide oceans from climate change means baby sharks are at risk of being born smaller and without the energy they need to survive, a group of scientists has found.

Ecology Mar 04, 2021

Breaking the patrisharky: Scientists reexamine gender biases in shark, ray mating research

Shark scientists at Georgia Aquarium, Scripps Institution of Oceanography at UC San Diego, and Dalhousie University are challenging the status quo in shark and ray mating research in a new study that looks at biological drivers ...

Evolution Mar 03, 2021

New light shed on the early evolution of limb bone marrow

When and how bone marrow first originated in the limbs of early four-legged animals is disputed in evolutionary biology. With the help of powerful X-ray technology, an international research team, led by Uppsala University, ...

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