query: SELECT ?item ?article ?title ?image
  WHERE
  {
    ?item wdt:P31 wd:Q16521 . # instance of taxon
    ?item p:P225 ?taxon_name_stm .
    ?taxon_name_stm pq:P574 "2021-01-01"^^xsd:dateTime .
    ?article schema:about ?item .
    ?article schema:isPartOf <https://de.wikipedia.org/> .
    ?article schema:name ?title .
    OPTIONAL { ?item wdt:P18 ?image . } 
  }