Some people pointed out that the flowers' shape could be the result of adaptive evolutionary development. However, user SolitaryBee said: "The fact that the flower looks like a bird to humans cannot have evolved adaptively because as a signal receiver, there is nothing humans could have done to increase the fitness of individuals that evolved this signal (to look like a bird)," the scientist commented. "Unless indigenous Australians in arid Australia bred or traded the plant because it looks like a bird."