List In List

• mammals
  1. dog
     1. collie
     2. dashshund
     3. poodle
  2. cat
     1. persian
     2. calico
  3. pig
• fish
  1. trout
     1. brown
     2. rainbow
     3. brook
  2. gold
  3. sword
  4. tropical
  5. angel
• insects
  1. ant
  2. grasshopper
  3. fly
  4. beetle
  5. mosquitoe
  6. gnat
  7. butterfly
  8. moth
• birds
  1. blue
  2. eagle
  3. quail
  4. robin
  5. crow
  6. cockatoo
  7. canary
  8. magpies