Ecological Food Web

{
  "elements":[
    {"data":{"id":"sun","label":"Sunlight"}},
    {"data":{"id":"grass","label":"Grass"}},
    {"data":{"id":"plankton","label":"Plankton"}},
    {"data":{"id":"rabbit","label":"Rabbit"}},
    {"data":{"id":"deer","label":"Deer"}},
    {"data":{"id":"fish","label":"Fish"}},
    {"data":{"id":"fox","label":"Fox"}},
    {"data":{"id":"hawk","label":"Hawk"}},
    {"data":{"id":"bear","label":"Bear"}},
    {"data":{"source":"sun","target":"grass"}},
    {"data":{"source":"sun","target":"plankton"}},
    {"data":{"source":"grass","target":"rabbit"}},
    {"data":{"source":"grass","target":"deer"}},
    {"data":{"source":"plankton","target":"fish"}},
    {"data":{"source":"rabbit","target":"fox"}},
    {"data":{"source":"rabbit","target":"hawk"}},
    {"data":{"source":"deer","target":"bear"}},
    {"data":{"source":"fish","target":"bear"}},
    {"data":{"source":"fox","target":"hawk"}}
  ],
  "layout":{"name":"breadthfirst","directed":true,"animate":false,"spacingFactor":1.2}
}