Which sustainable material innovation was specifically developed to reduce the poaching of elephants for ivory in product manufacturing?

Test your knowledge about sustainable product development in the wildlife conservation industry! Many companies are now creating innovative products that support conservation efforts while meeting consumer needs. These range from wildlife-friendly certification programs to products made from sustainable materials that directly fund conservation projects. How much do you know about the evolution of these eco-friendly wildlife products and their impact on conservation?

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Tagua nut (also called 'vegetable ivory') - a palm tree seed that can be carved like ivory
Mushroom leather - a mycelium-based alternative to animal leather
Econyl - regenerated nylon made from fishing nets and other waste
Piñatex - a leather alternative made from pineapple leaf fibers