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.
Interesting Facts About Shark: 1  Sharks do not have roots in their teeth for attachment to the gums. 2  All sharks lose one tooth a week, at least. 3  Most of the times shark teeth are stuck to their prey or come out while eating. 4  In most of the animals, only lower jaw can move.