European Diseases: The diseases brought to this continent by the Europeans included bubonic plague, chicken pox, pneumonic plague, cholera, diphtheria, influenza, measles, scarlet fever, smallpox, typhus, tuberculosis, and whooping cough.
Silverfish are sometimes mistaken for centipedes, which do inflict painful bites. One way to tell the difference is to note how many legs the bug has. Upon close inspection of a silverfish, youâll see that it only has six legs. o Silverfish are small insects (between 1/4 inch and 1/2 inch) and have shimmering, silver-colored scales.
The last pair of prolegs on the anal abdominal segment are usually called claspers. So in all, they have 16 legs: they are hexadecapodal. The larvae of other species of insects such as wasps and flies can have more than 16 legs. Caterpillars with all 16 legs walk with a ripple motion. The Caterpillars of some species have atrophied prolegs, and appear to only have 8, 6, or 4 prolegs. These caterpillars move in a looper motion. Some have no prolegs at all, and move in a slug-like motion. The 6 true legs on the thorax are retained through pupation and are transformed into the legs of the adult.