The giant squid is the second largest mollusc and is the second largest of all invertebrates. Several extinct cephalopods, such as the coleoids Tusoteuthis vampyromorphid Limestone, Limestone and Ordovician Yezoteuthis Cameroceras Nautiloid could have done more. Giant squid size, the total length of all, it has often been exaggerated. According to giant squid expert Steve O'Shea, such lengths were likely achieved by stretching the two tentacles like elastic bands Based on the examination of 130 samples and a peak inside sperm whales, giant squid mantle "who knew not exceed 2.25 m ( 7.4 ft).