Did you know about the deadly mantis shrimp, strong enough to break the shell of a crab. Another thing about these beautifully dangerous creatures. Is that they go by nicknames such as “prawn killers” (Australia) and “thumb splitters” (pretty much worldwide). Also, these magnificent creatures, are a violent killing predator. Killing their prey with a menacing slash. In the same way a mantis fish, could easily cut your finger in a millisecond. Lastly these quick and deadly predators, usually eat prey like, crustaceans such as clams, fish, or other small things.
Answer: 2) Without the chronometer the world would never have been accurately mapped which would have hindered the development of efficient trade routes.
5) The chronometer is the most historically significant object discussed in McGregor's book because it established the concept of global standard time
