It's believed that Wally Duck may have been among the first to introduce duckfoot strains to the Cannabis community.
However, it's important to note that fused leaves, commonly appear in seedlings, and if selective bred for it can be stabilised over a few generations. Genes similar to those found in duckfoot strains are also present in Indica/Afghani lines and other landrace varieties, where often fused leaflets appear. As a result, there may be duck strains with diverse origins currently in existence.