a chip on (one's) shoulder An attitude that leads one to become combative or easily angered. Fred has such a chip on his shoulderâyou never know what's going to set him off next. She won't admit it, but Kate has a chip on her shoulder when it comes to discussing her career. See also: chip, on, shoulder *chip on one's shoulder. Fig. a bad attitude that tends to get someone easily upset. (*Typically: get ~; have ~; give one ~.) Why did you get so angry at the slightest criticism? You seem to have a chip on your shoulder. . chip on (one's) shoulder. A habitually hostile or combative attitude. . American HeritageÂ® Dictionary of the English Language, Fifth Edition. Copyright Â© 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
Little black ants are small and dark-brown, black or jet black in color and are a native species found throughout the United States. The workers are as small as 1.5 mm in length, and queens can measure up to 4 mm. Their antennae consist of 12 segments and end in a three-segmented club. Their pedicel, or the ant waist, is two-segmented. Little black ants have no spines, and their thorax is unevenly rounded.
Discover more about the structured social system of ants. With around 13,000 species worldwide, ranging in length from less than 1mm to 30mm, it's probable their weights vary greatly-though most experts seem to agree the average weight of an ant is less than 10mg. But no-one knows how many ants there are in the world. The BBC Four documentary claims they number not 10,000 trillion but 100 trillion, though it still suggests the total weight of ants equals the total weight of humans.