1) Norse mythology, originating from the Scandinavian region, features gods and mythical creatures like Odin, Thor, Loki, and Valkyries. It explores themes of heroism, destiny, and the battle between gods and giants, with intricate tales recorded in texts such as the Prose Edda and Poetic Edda.

2) In African mythology, there is a rich tapestry of diverse beliefs and stories across the continent's many regions and cultures. It includes deities, spirits, and mythical creatures, with narratives often addressing themes of creation, ancestral heritage, and the forces of nature.

3) In Japanese mythology, deities known as kami are revered and play integral roles in Shinto beliefs and practices. Figures such as Amaterasu (goddess of the sun), Susanoo (god of storms), and Izanagi and Izanami (creators of the world) feature prominently, along with legendary creatures like dragons and kitsune.

4) The largest known dinosaur, Argentinosaurus, weighed around 70-100 tons and measured up to 100 feet in length.