Earth's craters are enduring testaments to direct asteroid hits. And though millionsâin some cases billionsâof years of erosion have made it difficult to determine the exact size of the meteorites, there is a general scientific consensus around the world's largest craters, which mark the largest asteroid impacts. Here are the ten biggest known: 1. Vredefort Crater.
Quick Answer. Tiger sharks have a row of 24 teeth in their upper jaw and a matching set of 24 teeth in the lower jaw, totaling 48 teeth. Tiger sharks have a square jaw structure, and each of their teeth are built with cutting and sawing mechanisms. Continue Reading.
Keep in mind that shark teeth really arenât abnormal. It happens to approximately 1 in 10 children. Most of the time, shark teeth will resolve without intervention (i.e. the baby tooth will fall out and the permanent tooth will assume its proper position). If they donât, your dentist can assess the situation and remove the lingering baby tooth if it is necessary.