* Their head shape: Bull sharks have a broad, blunt head with a prominent forehead, similar to the head of a bull.
* Their aggressive behavior: Bull sharks are known to be particularly aggressive, especially when they are near their young or when they feel threatened. They are often described as being fearless and even prone to charging at humans.
* Their tendency to inhabit brackish water: Bull sharks are one of the few shark species that can tolerate both saltwater and freshwater. This allows them to live in estuaries, rivers, and even lakes, where they may encounter humans more frequently.
While the "bull" part of their name comes from their head shape and behavior, it's important to remember that they are still sharks and should be treated with respect.