1. John Cena to Host Discovery's Shark Week: The article announces that WWE superstar John Cena will be hosting Discovery's annual Shark Week programming this year. Cena, who has a long-standing passion for marine life and conservation, will bring his enthusiasm and knowledge to the iconic television event.

2. Cena's Involvement in Shark Week: The article explains that Cena will be involved in various Shark Week programs, including hosting a special episode that will feature him exploring the ocean and learning about different shark species. Cena's participation is expected to bring a new level of excitement and engagement to the popular television event.

3. Cena's Commitment to Marine Conservation: The article highlights John Cena's ongoing commitment to marine conservation and his desire to use his platform to raise awareness about the importance of protecting sharks and their habitats. Cena's involvement in Shark Week is seen as an opportunity to further his advocacy efforts and inspire viewers to appreciate and protect these fascinating creatures.