A squid-like Scandinavian sea monster, the kraken is one of the best-known mythological creatures in the world, featuring in some of the most popular Hollywood releases of recent times. But the discovery of giant squid in the depths of the ocean has led some to speculate that there might be some truth in the occasional sighting of truly enormous cephalopods. 4 A Kraken. https://www.sciencenewsforstudents.org/article/real-sea-monsters https://www.nirvanicinsights.com/mythological-sea-creatures https://www.merriam-webster.com/words-at-play/monsters-of-the-day https://listverse.com/2013/01/12/10-terrifying-prehistoric-sea-monsters