Cosma / Communication / Knowledge / Realm / Terrestrial / Life / Animal / Vertebrate / Ray



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.

  • Sea dragons' genes give clues to their...
    on June 27, 2022 at 8:12 pm

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    on June 17, 2022 at 1:07 pm

    The human middle ear—which houses three tiny, vibrating bones—is key to transporting sound vibrations into the inner ear, where they become nerve impulses that allow us to hear.

  • 'Ugly' reef fishes are most in need of...
    on June 7, 2022 at 6:00 pm

    What's the relationship between people's perception of beauty and animals' conservation needs? According to a machine-learning study by Nicolas Mouquet at the University of Montpellier, France, and colleagues, publishing June 7th in the open-access journal PLOS Biology, the reef fishes that people find most beautiful tend to be the lowest priority for conservation support.

  • Fish cannibalism is rare in the wild, study finds
    on June 2, 2022 at 8:19 pm

    Mosquitofish and guppies, though known to be cannibalistic in captivity, are extremely unlikely to be cannibals in wild settings, and the rare instances of cannibalism in these fish are likely due to strong competition for food. The findings, from a new Ecology and Evolution study led by U.S. and U.K. researchers, could have implications not only for fish enthusiasts and scientists who use mosquitofish as models for ecological and evolutionary studies, but could also help explain the causes and […]

  • Palaeospondylus: Long-standing mystery of...
    on May 25, 2022 at 3:26 pm

    The Evolutionary Morphology Laboratory led by Shigeru Kuratani at the RIKEN Cluster for Pioneering Research (CPR) in Japan, along with collaborators, has found evidence that the mysterious ancient fish-like vertebrate Palaeospondylus was likely one of the earliest ancestors of four-limbed animals, including humans. Published May 25 in the scientific journal Nature, the study unmasks this strange animal from the deep past and sets its position on the evolutionary tree.


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.