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Jonathan Bird’s Blue World (Jonathan Bird Productions & Oceanic Research Group)

Manta ray (Wikipedia)


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

OneLook, Free Dictionary, Wiktionary


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

Encyclopædia Britannica





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Giant devil ray or devil fish (Wikipedia)




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




Guitarfish (Wikipedia)


WorldCat, Library of Congress, UPenn Online Books, Open Library




Stingray (Wikipedia)


OER Commons: Open Educational Resources










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.

  • Endangered sharks, rays caught in protected Med...
    on August 9, 2022 at 3:06 pm

    Endangered sharks, rays and skates in the Mediterranean are more frequently caught in protected than in unprotected areas, according to research published Tuesday highlighting the need for better conservation for critically threatened species.

  • Health care is responsible for 7% of carbon...
    on August 3, 2022 at 12:40 pm

    While we think of carbon emissions coming from manufacturing and agriculture, we don't often think of those arising from health care. In Australia, health care is responsible for 7% of national carbon emissions, while globally, health care is responsible for 4.4% of emissions.

  • New Mexico mammoths among best evidence for early...
    on August 1, 2022 at 3:35 pm

    About 37,000 years ago, a mother mammoth and her calf met their end at the hands of human beings.

  • Fiddler crab eye view inspires researchers to...
    on August 1, 2022 at 3:08 pm

    Artificial vision systems find a wide range of applications, including self-driving cars, object detection, crop monitoring, and smart cameras. Such vision is often inspired by the vision of biological organisms. For instance, human and insect vision have inspired terrestrial artificial vision, while fish eyes have led to aquatic artificial vision. While the progress is remarkable, current artificial visions suffer from some limitations: they are not suitable for imaging both land and […]

  • What's a shark ordinarily associated with the...
    on July 25, 2022 at 3:26 pm

    A half-blind shark that is typically thought to live in freezing Arctic waters, scavenge on polar bear carcasses and survive for hundreds of years, recently turned up in perhaps an unexpected place—a coral reef off Belize. This marks the first time a shark of its kind has been found in western Caribbean waters off the world's second longest barrier reef.


Here are links to pages about closely related subjects.

Knowledge Realm


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

Life Cell, Gene, Tree of Life
Plant Flower, Tree
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


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