Tag: Ocean dangers

According to the National Ocean Service, the average salinity of seawater is about 3.5%, a concentration far too high for human kidneys to process effectively. When a person drinks too much seawater, the resulting medical condition is officially called hypernatremia, or high sodium levels in the blood, which can lead to a dangerous form of salt poisoning.

With over 35,000 known fish species, some of the most beautiful marine life can also be the most deadly. The most toxic fish often carry potent neurotoxins or venom that can cause severe harm or even death to humans and other predators. This guide explores the most dangerous species, distinguishing between those that are poisonous when ingested and those that are venomous when they sting.