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.
There are many differences between human teeth and other animal teeth: 1  Humans only get 2 sets of teeth in their lifetimes, whereas some animals like dolphins only get one, and some animals such as sharks grow multiple sets throughout their lives. 2  Humans have at most 32 teeth, but many animals have way more than we do.