Ray

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Introduction1

Dictionary

ray : any of an order (Rajiformes) of usually marine cartilaginous fishes (such as stingrays and skates) having the body flattened dorsoventrally, the eyes on the upper surface, and enlarged pectoral fins fused with the head — Webster

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Ray is a superorder of cartilaginous fish scientifically known as Batoidea. They and their close relatives, the sharks, comprise the subclass Elasmobranchii. Rays are the largest group of cartilaginous fishes, with well over 600 species in 26 families. Rays are distinguished by their flattened bodies, enlarged pectoral fins that are fused to the head, and gill slits that are placed on their ventral surfaces. — Wikipedia

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Innovation

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This walking fish may reveal how animals first took to land (Roni Dengler, Science Magazine)

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Stingray (Wikipedia)

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More News …

Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Receding ice leaves Canada's polar bears at...
    on September 29, 2022 at 8:18 am

    Sprawled on rocky ground far from sea ice, a lone Canadian polar bear sits under a dazzling sun, his white fur utterly useless as camouflage.

  • You don't have to be a cute koala to be an...
    on September 28, 2022 at 4:27 pm

    Remember the popularity contests of high school? Often our athletic, genetically gifted classmates got the most attention: the school captain, the footy team captain, the prom queen. But popularity contests don't just exist in school. And in the world of conservation, it can be a matter of survival for the "winners" and "losers."

  • Rare fossil teeth overturn long-held views about...
    on September 28, 2022 at 3:00 pm

    An international team of researchers has discovered 439-million-year-old remains of a toothed fish that suggest the ancestors of modern osteichthyans (ray- and lobe-finned fish) and chondrichthyans (sharks and rays) originated much earlier than previously thought.

  • Ancient 'shark' from China may be humans' oldest...
    on September 28, 2022 at 3:00 pm

    Living sharks are often portrayed as the apex predators of the marine realm. Paleontologists have been able to identify fossils of their extinct ancestors that date back hundreds of millions of years to a time known as the Palaeozoic period. These early "sharks," known as acanthodians, bristled with spines. In contrast to modern sharks, they developed bony "armor" around their paired fins.

  • Fish scientist helped the alien in Jordan Peele's...
    on September 27, 2022 at 3:05 pm

    When Kelsi Rutledge came to UCLA to pursue graduate studies, she didn't expect to land a side hustle in Hollywood. But her discovery of a new fish species attracted the attention of director Jordan Peele, and she enthusiastically accepted his invitation to help create a scientifically plausible alien for his latest movie, "Nope."

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Related

Here are links to pages about closely related subjects.

Knowledge Realm

Terrestrial

Sphere Land, Ice, Water (Ocean), Air
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic

Life Cell, Gene, Tree of Life
Microorganism
Plant Flower, Tree
Animal
Invertebrate Cuttlefish, Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human

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Notes

1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.