The author develops a feeling of mystery and terror by describing the sea creatures in detail and also by stating how they hunt and escape predators.
Explanation:
From the given text, three sea creatures are described which are the:
Atlantic Hogfish
Gulper Eel
Vampire Squid.
Also, in the description of the Atlantic Hogfish, it is narrated that it eats its prey from the inside out, after creating a hole on the sides of the prey.
You develop mature relationships with other by being trustful and respectful to the other person. Don't be jealous to what they have. Don't hold grudges on them. You should also give them privacy.