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 on a husked coconut shell, reading “Nauru Isl commander / native knows posit / he can pilot / 11 alive need small boat / Kennedy.” This coconut was later kept on the president's desk, and is now in the John F. Kennedy Library. Coconut trunks are used for building small bridges and huts; they are preferred for their straightness, strength, and salt resistance. In Kerala, coconut trunks are used for house construction. Coconut timber comes from the trunk, and is increasingly being used as an ecologically sound substitute for endangered hardwoods. It has applications in furniture and specialized construction, as