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.
A normal adult mouth has 32 teeth, which (except for wisdom teeth) have erupted by about age 13: â¢ Incisors (8 total): The middlemost four teeth on the upper and lower jaws. â¢ Canines (4 total): The pointed teeth just outside the incisors. â¢ Premolars (8 total): Teeth between the canines and molars.