CREATE TABLE table_53723 ("Year" FLOAT, "Theme" TEXT, "Face Values" TEXT, "Artist" TEXT, "Issue Price" TEXT, "Mintage" FLOAT, "Finish" TEXT)

In the Endangered Wildlife Series from the Royal Canadian Mint numismatic coins printed in the 2000s, what theme had a mintage of 700?
SELECT "Theme" FROM table_53723 WHERE "Mintage" = '700'
SELECT "Theme" FROM "table_53723" WHERE "Mintage" = '700'