For my 3rd model I have chosen a chambered nautilus. It is over 400 million years old and is considered a living fossil due to the fact it has not changed physically during this time. Nautiluses are found throughout the Pacific and Indian oceans, where they spend their daylight hours at depths of about 1,800 feet (550 meters).

The Nautilis does not live as deep as the earlier animals I have chosen to model, this will give me the chance to model some of its environment, i.e coral etc. 

Their shells are highly sought after and have been popular since the renaissance. Because of this nautilus numbers are in decline and after surviving 400 millions, there is every chance they could be made virtually extinct by man.