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COMPANION ANIMALS

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GUINEA PIGS HAMSTERS. INSECTS LIZARDS. MICE RABBITS. RATS REPTILES. EXOTICS LARGE ANIMALS ... More than 5300 species of passerines, alone. Early Ancestors of Birds ... – PowerPoint PPT presentation

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Title: COMPANION ANIMALS


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COMPANION ANIMALS
  • BIRDS CATS
  • CHINCHILLAS CHIPMUNKS
  • DOGS FERRETS
  • FISH GERBILS
  • GUINEA PIGS HAMSTERS
  • INSECTS LIZARDS
  • MICE RABBITS
  • RATS REPTILES
  • EXOTICS LARGE ANIMALS

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Eukaryote Division
Eukaryote Animalia Kingdom
Animalia Chordata Phylum
Chordata Aves Class
Aves Psittaciformes Order
Passeriformes Psittacidae Family
Sittidae Ara Genus
Sitta Macao Species
Carolinensis
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8600 species
More being discovered each year
More than 5300 species of passerines, alone
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Early Ancestors of Birds
  • Pterosaurs 190 million yrs ago
  • Huge, wingspans of 23 feet, ate fish!!
  • Archaeopteryx
  • Moa Australia huge 2x human
  • Reptilian ancestors teeth, claws

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Features of Birds
  • Teeth missing, jaw muscles missing, light
    horn-covered bill, limb bones are hollow
    (humerus), bones are fused at the rear of the
    body-provides stability and attachment for
    feathers, legs are close to midline of bird and
    slight to the rear to provide balance, legs are
    strong for lift-off and hopping

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Features of Birds
  • Feet are specialized
  • Four toes arranged in typical 31 or 22
  • 22 called zygodactyl. Surer grip, climbing, use
    feet like hands
  • Claws are used for gripping and preening
  • Bills are used for cracking.
  • Upper and lower bills can be moved separately

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Features of Birds
  • Wing of the bird is built around three digits,
    similar to human fingers.
  • Wrist bones are fused for strength into the
    carpometacarpus
  • Clavicles are joined together to form the
    wishbone
  • Sternum bound to the backbone by ribs
  • Heavy muscles on bottom of body

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Features of Birds
  • Excepting bill, feet, legs, body is feathered
  • Feather tracts are called pterylae
  • Bald areas of body are apteria
  • Feathers (hair,nails) - protein keratin
  • Body or contour feathers strong, elongated
    flight feathers warm, wispy down feathers next
    to body

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Features of Birds
  • Sulphur-containing amino acids are essential for
    feathering
  • Feathers flight, insulation (106-110 degrees),
    waterproofing, modified to assist lifestyle
    woodpecker tail vulture head, sexual dimorphism

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BIRDS
  • All birds have feathers
  • All birds have lightweight bones
  • All birds produce calcareous eggs

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