Source: http://www1.ics.uci.edu/pub/machine-learning-databases/zoo/',
1. Title: Zoo database

2. Source Information
   -- Creator: Richard Forsyth
   -- Donor: Richard S. Forsyth 
             8 Grosvenor Avenue
             Mapperley Park
             Nottingham NG3 5DX
             0602-621676
   -- Date: 5/15/1990
 
3. Past Usage:
   -- None known other than what is shown in Forsyth's PC/BEAGLE User's Guide.

4. Relevant Information:
   -- A simple database containing 17 Boolean-valued attributes.  The "type"
      attribute appears to be the class attribute.  Here is a breakdown of
      which animals are in which type: (I find it unusual that there are
      2 instances of "frog" and one of "girl"!)

      Class# Set of animals:
      ====== ===============================================================
           1 (41) aardvark, antelope, bear, boar, buffalo, calf,
                  cavy, cheetah, deer, dolphin, elephant,
                  fruitbat, giraffe, girl, goat, gorilla, hamster,
                  hare, leopard, lion, lynx, mink, mole, mongoose,
                  opossum, oryx, platypus, polecat, pony,
                  porpoise, puma, pussycat, raccoon, reindeer,
                  seal, sealion, squirrel, vampire, vole, wallaby,wolf
           2 (20) chicken, crow, dove, duck, flamingo, gull, hawk,
                  kiwi, lark, ostrich, parakeet, penguin, pheasant,
                  rhea, skimmer, skua, sparrow, swan, vulture, wren
           3 (5)  pitviper, seasnake, slowworm, tortoise, tuatara 
           4 (13) bass, carp, catfish, chub, dogfish, haddock,
                  herring, pike, piranha, seahorse, sole, stingray, tuna
           5 (4)  frog, frog, newt, toad 
           6 (8)  flea, gnat, honeybee, housefly, ladybird, moth, termite, wasp
           7 (10) clam, crab, crayfish, lobster, octopus,
                  scorpion, seawasp, slug, starfish, worm

5. Number of Instances: 101

6. Number of Attributes: 18 (animal name, 15 Boolean attributes, 2 numerics)

7. Attribute Information: (name of attribute and type of value domain)
   1. animal name:      Unique for each instance
   2. hair              Boolean
   3. feathers          Boolean
   4. eggs              Boolean
   5. milk              Boolean
   6. airborne          Boolean
   7. aquatic           Boolean
   8. predator          Boolean
   9. toothed           Boolean
  10. backbone          Boolean
  11. breathes          Boolean
  12. venomous          Boolean
  13. fins              Boolean
  14. legs              Numeric (set of values: {0,2,4,5,6,8})
  15. tail              Boolean
  16. domestic          Boolean
  17. catsize           Boolean
  18. type              Numeric (integer values in range [1,7])

8. Missing Attribute Values: None

9. Class Distribution: Given above