Coconut on package labels as a "tree nut" with potential allergenicity. Cocamidopropyl betaine (CAPB) is a surfactant manufactured from coconut oil that is increasingly used as an ingredient in personal hygiene products and cosmetics, such as shampoos, liquid soaps, cleansers and antiseptics, among others. CAPB may cause mild skin irritation, but allergic reactions to CAPB are rare and probably related to impurities rendered during the manufacturing process (which include amidoamine and dimethylaminopropylamine) rather than CAPB itself. Many varieties of coconuts "C. nucifera" are being cultivated in many countries. These vary by the taste of the coconut water and color of the
Coconut crab climb up a tree high and drop the husk nut, to access the coconut flesh inside. They often descend from the trees by falling, and can survive a fall of at least unhurt. Coconut crabs cut holes into coconuts with their strong claws and eat the contents, although it can take several days before the coconut is opened. Thomas Hale Streets discussed the behaviour in 1877, doubting that the animal would climb trees to get at the coconuts. In the 1980s, Holger Rumpf was able to confirm Streets' report, observing and studying how they open coconuts in the wild. The