Survival skills
A human being can survive an average of three to five days without the intake of water. The issues presented by the need for water dictate that unnecessary water loss by perspiration be avoided in survival situations. The need for water increases with exercise.
The Little Mermaid
The Little Mermaid becomes melancholic and asks her grandmother if humans can live forever. The grandmother explains that humans have a much shorter lifespan than a mermaid's 300 years, but that when mermaids die, they turn to sea foam and cease to exist, while humans have an eternal soul that lives on in heaven. The Little Mermaid, longing for the prince and an eternal soul, visits the Sea Witch in a dangerous part of the ocean. The witch willingly helps her by selling her a potion that gives her legs in exchange for her tongue and beautiful voice, as the Little Mermaid has the most enchanting voice in the world. The witch warns the Little Mermaid that once she becomes a human, she will never be able to return to the sea. Consuming the potion will make her feel as if a sword is being passed through her body, yet when she recovers, she will have two human legs and will be able to dance like no human has ever danced before. However, she will constantly feel as if she is walking on sharp knives, and her feet will bleed terribly. In addition, she will obtain a soul only if she wins the love of the prince and marries him, for then a part of his soul will flow into her. Otherwise, at dawn on the first day after he marries someone else, the Little Mermaid will die with a broken heart and dissolve into sea foam upon the waves.
After she agrees to the arrangement, the Little Mermaid swims to the surface near the prince's palace and drinks the potion. She is found by the prince, who is mesmerized by her beauty and grace, even though she is mute. Most of all, he likes to see her dance, and she dances for him despite suffering excruciating pain with every step. Soon, the Little Mermaid becomes the prince's favorite companion and accompanies him on many of his outings. When the prince's parents encourage their son to marry the neighboring princess in an arranged marriage, the prince tells the Little Mermaid he will not because he does not love the princess. He goes on to say he can only love the young woman from the temple, who he believes rescued him. It turns out that the princess from the neighboring kingdom is the temple girl, as she was sent to the temple for her education. The prince declares his love for her, and the royal wedding is announced at once.