Coconut crab next two pairs, as with other hermit crabs, are large, powerful walking legs with pointed tips, which allow coconut crabs to climb vertical or overhanging surfaces. The fourth pair of legs is smaller with tweezer-like chelae at the end, allowing young coconut crabs to grip the inside of a shell or coconut husk to carry for protection; adults use this pair for walking and climbing. The last pair of legs is very small and is used by females to tend their eggs, and by the males in mating. This last pair of legs is usually held inside the carapace, in
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