TIL apparently sharks can often be found nearby groups of dolphins. It makes a ton of sense though.

> This myth is often associated with a shark safety tip: “If you see dolphins, it's safe to swim there because their presence scares away sharks.” This is simply not correct. In fact, sharks and dolphins are often found near each other for a simple reason—they eat the same food, and both go where the food is.

https://slate.com/technology/2014/05/adam-walker-saved-by-dolphins-from-shark-attack-the-myth-that-dolphins-protect-people.html