7 the operating mechanism, esp. in a piano, gun, watch, etc. 8 (of a guitar) the distance between the strings and the fingerboard. 9 (of keyboard instruments) the sensitivity of the keys to touch. 10 the force applied to a body. the reaction is equal and opposite to the action.
Quick Answer. The Hawaiian happy face spider, Theridion grallator, is not poisonous. While the arachnid belongs to the same family as the feared black widow, it lacks the toxic venom. The species is named for the array of color patterns across the abdomen, some of which resemble a smiling face. Continue Reading.
Jurgen Otto, Flickr // CC BY-SA 2.0. Peacock spiders (genus Maratus) cram a whole lot of swagger into a teeny-tiny package. The biggest Maratus species can reach 0.3 inchesâabout the size of a pencil eraser. Like almost all spiders, peacock spiders are venomous.But that doesnât mean theyâre dangerous to humans: Their little jaws are so tiny that they couldnât even puncture our skin. Weâre safe, but crickets and other spiders are not. Like all jumping spiders, the peacock spiders donât build webs.They stalk their prey like lions. When the time comes, they pounce, and can take down prey three or four times their size.eâre safe, but crickets and other spiders are not. Like all jumping spiders, the peacock spiders donât build webs. They stalk their prey like lions. When the time comes, they pounce, and can take down prey three or four times their size.