CREATE TABLE table_20074 ("Genus/Species" CLOB, "Common Name" CLOB, "Accession Number" CLOB, "Length" CLOB, "Similarity" CLOB, "Identity" CLOB)

What's the animals name when the genus/species is rattus norvegicus?
SELECT "Common Name" FROM table_20074 WHERE "Genus/Species" = 'Rattus norvegicus'
SELECT "Common Name" FROM "table_20074" WHERE "Genus/Species" = 'Rattus norvegicus'