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Wikipedia वर सर्व पहाSpine (zoology) - Wikipedia
In a zoological context, spines are hard, needle-like anatomical structures found in both vertebrate and invertebrate species. The spines of most spiny mammals are modified hairs, with a spongy center covered in a thick, hard layer of keratin and a sharp, sometimes barbed tip. अधिक पहा
Because many species of fish and invertebrates carry venom within their spines, a rule of thumb is to treat every injury as if it … अधिक पहा
In many cases, spines are a defense mechanism that help protect the animal against potential predators. Because spines are sharp, they can puncture skin and inflict pain and damage which may cause the predator to avoid that species from that point on. अधिक पहा
Common uses for animal spines include:
• Jewelry
• Pens
• अधिक पहाCC-BY-SA परवाना अंतर्गत विकिपीडिया मजकूर Vertebrate - Wikipedia
वेबVertebrates (/ ˈ v ɜːr t ə b r ɪ t s,-ˌ b r eɪ t s /) are deuterostomal animals with bony or cartilaginous axial endoskeleton — known as the vertebral column, spine or backbone — …
Spine (zoology) - Wikiwand
वेबIn a zoological context, spines are hard, needle-like anatomical structures found in both vertebrate and invertebrate species. The spines of most spiny mammals are modified …
Harvard researchers examine how mammal spines evolve
वेब3 फेब्रु, 2020 · A new study published in Nature Ecology and Evolution by Harvard researchers and collaborators at the Field Museum of Natural History sheds light on how …
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The Spine: A Strong, Stable, and Flexible Structure with …
वेब30 ऑग, 2019 · From its first appearance in early vertebrates, the spine evolved the function of protecting the spinal cord, avoiding excessive straining during body motion. Its …
The evolution of the spine fueled the rise of mammals—and
वेबThe evolution of the spine fueled the rise of mammals—and human back problems. Fossils show how lumbar vertebrae were freed up to adapt to myriad lifestyles. 20 Sep 2018. By …
Vertebral Column: Anatomy, vertebrae, joints & ligaments | Kenhub
वेब12 सप्टें, 2023 · The vertebral column (spine or backbone) is a curved structure composed of bony vertebrae that are interconnected by cartilaginous intervertebral discs. …
Vertebrate | Definition, Characteristics, Examples, Classification ...
वेब6 मे, 2024 · Vertebrate, any animal of the subphylum Vertebrata. They have backbones and are also characterized by a muscular system consisting primarily of bilaterally paired …
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