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.
Their bellies are white. Each whale shark has its own unique pattern of spots, much like human fingerprints. A whale sharkâs mouth is about 5 feet wide (1.5 m). They have rows of over 300 teeth, but as filter feeders they do not use these teeth to eat. Habitat. Whale sharks tend to like warmer areas and are found in tropical waters all over the world.