Bull Sharks tend to be known for two things: being very aggressive (to the point of being responsible for more attacks on humans than any other species of shark; though not the highest number of fatal attacks) and their ability to swim upriver and survive in fresh water.
I apologise if that makes you reconsider your swimming habits.
Confusingly, there is a shark with “taurus” (Latin for “bull”) in its scientific name, but that shark is the Sand Tiger — this is apparently an ongoing source of taxonomic controversy. To add to the confusion, Sand Tiger Sharks are not closely related to Tiger Sharks (i.e. the species of Tiger Shark without an adjective). The scientific name for the Bull Shark is Carcharhinus leucas, which means something like “Pale Shark”.
Related to this, the Realmgardian name as depicted in the picture above isn’t mean to be a taxonomic name. It’s the direct translation of the common English/Gardian name into Latin/Elven.