Coconut falling coconuts than by sharks annually. The leftover fiber from coconut oil and coconut milk production, coconut meal, is used as livestock feed. The dried calyx is used as fuel in wood-fired stoves. Coconut water is traditionally used as a growth supplement in plant tissue culture and micropropagation. The smell of coconuts comes from the 6-pentyloxan-2-one molecule, known as δ-decalactone in the food and fragrance industries. Researchers from the Melbourne Museum in Australia observed the octopus species "Amphioctopus marginatus" use tools, specifically coconut shells, for defense and shelter. The discovery of this behavior was observed in Bali and North Sulawesi
Coconut in Indonesia between 1998 and 2008. "Amphioctopus marginatus" is the first invertebrate known to be able to use tools. A coconut can be hollowed out and used as a home for a rodent or small birds. Halved, drained coconuts can also be hung up as bird feeders, and after the flesh has gone, can be filled with fat in winter to attract tits. Coconut oil is increasingly used in the food industry. Proteins from coconut may cause food allergy, including anaphylaxis. In the United States, the U.S. Food and Drug Administration declared that coconut must be disclosed as an ingredient