Echo (mythology) is known, is Norman-French verse narrative written towards the end of the 12th century. In the four manuscripts that remain, an unknown author borrows from the Echo and Narcissus of Ovid to create a story better suited to the needs of his time. This medieval account alters the characters of both Echo and Narcissus. In Ovid’s account Echo is a beautiful nymph residing with the Muses, and Narcissus is a haughty prince. In "The Lay of Narcissus", Echo is replaced by the princess Dané. Conversely, Narcissus loses the royal status he bore in Ovid's account: in this rendition he is
Echo Greek is a mountain nymph whose ability to speak was cursed, only able to repeat the last words anyone spoke to her. Some animals use echo for location sensing and navigation, such as cetaceans (dolphins and whales) and bats. Acoustic waves are reflected by walls or other hard surfaces, such as mountains and privacy fences. The reason of reflection may be explained as a discontinuity in the propagation medium. This can be heard when the reflection returns with sufficient magnitude and delay to be perceived distinctly. When sound, or the echo itself, is reflected multiple times from multiple surfaces, the