Download Animal Skulls: A Guide to North American Species by Mark Elbroch PDF

By Mark Elbroch

  • Comprehensive consultant to the animals of North the United States
  • Fully illustrated with drawings and pictures
  • User-friendly structure makes evaluating species effortless

    This uniquely thorough reference and guidebook deals illustrations, descriptions, and measurements for the skulls of a few 275 animal species chanced on all through North the United States. The skull--the choice of bones that condo and defend a creature's mind and sensory organs--is the foremost anatomical characteristic used to spot an animal and comprehend lots of its behaviors. This ebook describes in phrases and photographs the bones and areas of the cranium very important to identity, together with illustrations of the entire bones within the skull, resulting in a better realizing of a creature's position within the wildlife. Life-size drawings and unique measurements make this consultant a useful reference for natural world execs, trackers, and animal-lovers alike.

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    Extra resources for Animal Skulls: A Guide to North American Species

    Example text

    Jugal D3, D5, D7, D10 20. jugular foramen D2 21. lacrimal D3, D12 22. lambdoidal crest (occipital crest) D1, D5 23. mandibular condyle D4, D8 24. mandibular fossa D2 25. masseteric fossa on the mandible D4, D8 26. maxilla (maxillary) D1, D3, D5, D7, D12 27. maxillary arm of the zygomatic arch D5, D12 28. mental foramina on the mandible D4 29. nasal D1, D3, D5, D7 30. nasal vacuity D1, D3, D7 31. occipital bone (occiput) D2, D3, D6, D7 32. occipital condyle D2, D3, D7 33. orbit D1, D5 34. orbitosphenoid D3 35.

    The upper and lower pairs of incisors close together in such a way as to slice and chisel both green and woody vegetation or gnaw at wood, bones, or anything short of metal the animal encounters. Colorful enamels are most evident on the anterior surfaces; the softer posterior is more easily worn away when the animal clicks its teeth together to maintain a sharp and ready edge. Canines Canines are the teeth of nightmares and horror movies, and are largely responsible for our fear of big carnivores.

    Occipital condyle 9. parietal 10. prefrontal 11. premaxillary 12. prootic 13. pterygoid 14. quadrate 15. quadratojugal 16. squamosal 17. vomer Turtle, Lizard, Alligator 1. anterior palatine foramen 2. basisphenoid 3. ectopterygoid 4. external nares 5. frontal 6. internal nares 7. jugal 8. lacrimal 9. maxilla (maxillary) 10. nasal 11. palatine 12. parietal 13. posterior palatine foramen 14. postorbital 15. prefrontal 16. premaxilla (premaxillary) 17. pterygoid 18. quadrate 19. quadratojugal 20. sclerotic ring 21.

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