Tree of Life
Plant Flower, Tree
Invertebrate 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
These are organized by a classification scheme developed exclusively for Cosma. More…
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
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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Arnhem Land Maliwawa rock art opens window to past
on September 30, 2020 at 7:12 pm
zStunning Arnhem Land rock art images including three rare depictions of bilbies and a dugong have been described by researchers in a new paper in Australian Archaeology this week.
Jellyfish with your chips?
on September 21, 2020 at 9:00 am
Jellyfish could replace fish and chips on a new sustainable takeaway menu to help keep threatened species off the plate.
Reef manta rays make long-term use of...
on September 2, 2020 at 4:10 am
Marine animals are notoriously difficult to track, creating big gaps in how scientists understand their behavior and migration patterns—key insights for helping conserve important habitats. Researchers in Australia, using satellite tags and a decades-old satellite photographic database, published a paper in Frontiers in Marine Science that suggests a migratory species like the reef manta ray is somewhat of a homebody.
Planetary ball-milling helps protect our planet...
on August 27, 2020 at 4:34 pm
Plastics are ubiquitous in modern life; unfortunately, once they lose function, they pollute the environment. Now, researchers at Osaka University have developed polymer materials that combine self-healing with strength and recyclability that could extend the functional lifetimes of manufactured plastics, thus minimizing the surging problem of discarded remnants.
Study rules out dark matter destruction as origin...
on August 26, 2020 at 7:15 pm
The detection more than a decade ago by the Fermi Gamma Ray Space Telescope of an excess of high-energy radiation in the center of the Milky Way convinced some physicists that they were seeing evidence of the annihilation of dark matter particles, but a team led by researchers at the University of California, Irvine has ruled out that interpretation.