No, sand sharks are not hazardous to people. They are really slow-transferring sharks that have no desire to interact with or try to eat human beings. But, like all animals, They could be aggressive should they experience their life are at risk. Sperm whales undoubtedly are a cosmopolite species on https://aquarium-conservation-eff85295.full-design.com/family-friendly-attractions-in-barcelona-options-75656675