Biology — Marine Food Web

{
  "elements":[
    {"data":{"id":"phyto","label":"Phytoplankton"}},
    {"data":{"id":"zoo","label":"Zooplankton"}},
    {"data":{"id":"small","label":"Small fish"}},
    {"data":{"id":"squid","label":"Squid"}},
    {"data":{"id":"tuna","label":"Tuna"}},
    {"data":{"id":"shark","label":"Shark"}},
    {"data":{"source":"phyto","target":"zoo"}},
    {"data":{"source":"zoo","target":"small"}},
    {"data":{"source":"small","target":"squid"}},
    {"data":{"source":"small","target":"tuna"}},
    {"data":{"source":"squid","target":"tuna"}},
    {"data":{"source":"tuna","target":"shark"}},
    {"data":{"source":"squid","target":"shark"}}
  ],
  "layout":{"name":"cose","animate":false,"nodeRepulsion":4500}
}