Pigs, which have the largest litter size of all even-toed ungulates, have two rows of teats lined from the armpit to the groin area. In most cases, however, even-toed ungulates have only one or two pairs of teats. In some species, these form an udder in the groin region.
What is a roundabout? A modern roundabout is a circular intersection where drivers travel counterclockwise around a center island. There are no traffic signals or stop signs in a modern roundabout. Drivers yield at entry to traffic in the roundabout, then enter the intersection and exit at their desired street. Studies by the Federal Highway Administration have found that roundabouts can increase traffic capacity by 30 percent to 50 percent compared to traditional intersections.
There are two types of roundabouts: Single-lane roundabouts and multi-lane roundabouts. There are a few key things to remember about driving roundabouts: 1  Yield to drivers in the roundabout. 2  Stay in your lane; do not change lanes.3  Do not stop in the roundabout.nce a gap in traffic appears, merge into the roundabout and proceed to your exit. Look for pedestrians and use your turn signal before you exit. If there is no traffic in the roundabout, you may enter without yielding. Watch a video on how to drive a roundabout.