Underwater, whales produce loud noises: known as songs. Scientists use whale songs to study the movements for migrations, of groups of whales. Recently, scientists discovered something unusual: a single, solitary whale whose song is unlike that of all other known whales. The most notable difference between this unusual whale's song and those of other whales is its high pitch or frequency This unique whale is called the 52-hertz whale because it sings at the unusual frequency of 52 hertz, a much higher pitch than normal. When the 52-hertz whale was first detected, the cause of its uniquely high-pitched song was unknown; however, scientists now have several theories to explain it. One theory holds that the 52-hertz whale may be a hybrid: the offspring of two different whale species Whales of different species are known to interbreed and produce hybrid offspring that combine characteristics from each of their parents' species. As a hybrid, the whale may have a unique song, different from that of either of its parents because it resulted from a combination of the two. A second theory is that the 52-hertz whale may have a damaged sense of hearing Just as people learn to speak by copying the sounds they hear, whales may learn to sing by listening to the sounds of other whales* songs. When people are born deaf, their speech may sound different from that of people born hearing. Similarly, the 52-hertz whale’s songs may sound different simply because it cannot hear the songs of other whales. A third theory holds that the 52-hertz whale may be the only known member of a rare species Perhaps there were once many more whales of this species, but most are now gone. It seems to be entirely unique only because most of its species has died out.
Both the reading and the lecture discuss about the unusual songs of the 52-hertz whales. The writer says that there are numerous theories that explain the unusual frequency and high pitch whales. However, the lecturer believes that these theories are flawed, and contradicts each of the points made in the reading.
To begin with, the author states that the 52-hertz whales may be hybrid, and as a hybrid they mate and produce offspring different from the parents' species. Nevertheless, the professor refutes this claim by stating that the migrating pattern of the 52-hertz is very unusual. He asserts that other hybrid whales move together with the non-hybrid whales, but the 52-hertz whales migrates alone which is not normal.
Secondly, the article notes that the 52-hertz whales may have damaged sense of hearing which made them to sound different from others, just like in humans. This specific argument is challenged by the speaker. He contends that the high pitch sound has nothing to do with hearing. According to him, the sound produced by the 52-hertz is as a result of its vocal structure. Thus, there is no relationship between the sound produced by the whale and its hearing ability.
Lastly, the writer avers that the 52-hertz whales are rare and unique, most of them would have died. The professor takes issue with this claim by arguing that every rare species must have a known parent and the case of the 52-hertz whales is not an exception. He goes on to say that there are technologies used to listen to the songs of whales but the songs of the 52-hertz whales have never been recorded with it.
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Grammar and spelling errors:
Line 3, column 141, Rule ID: POSSESIVE_APOSTROPHE
Message: Possible typo: apostrophe is missing. Did you mean 'parents'' or 'parent's'?
Suggestion: parents'; parent's
...nd produce offspring different from the parents species. Nevertheless, the professor re...
Line 5, column 301, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
...o do with hearing. According to him, the sound produced by the 52-hertz is as a r...
Transition Words or Phrases used:
but, however, if, lastly, may, nevertheless, second, secondly, so, thus, as a result, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 10.0 7.30242825607 137% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 25.0 22.412803532 112% => OK
Preposition: 35.0 30.3222958057 115% => OK
Nominalization: 2.0 5.01324503311 40% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1351.0 1373.03311258 98% => OK
No of words: 275.0 270.72406181 102% => OK
Chars per words: 4.91272727273 5.08290768461 97% => OK
Fourth root words length: 4.07223819929 4.04702891845 101% => OK
Word Length SD: 2.34030442323 2.5805825403 91% => OK
Unique words: 143.0 145.348785872 98% => OK
Unique words percentage: 0.52 0.540411800872 96% => OK
syllable_count: 393.3 419.366225166 94% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 3.0 1.51434878587 198% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 19.0 21.2450331126 89% => OK
Sentence length SD: 32.9338390581 49.2860985944 67% => OK
Chars per sentence: 96.5 110.228320801 88% => OK
Words per sentence: 19.6428571429 21.698381199 91% => OK
Discourse Markers: 7.07142857143 7.06452816374 100% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 1.0 4.33554083885 23% => More positive sentences wanted.
Sentences with negative sentiment : 6.0 4.45695364238 135% => OK
Sentences with neutral sentiment: 7.0 4.27373068433 164% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.215100274753 0.272083759551 79% => OK
Sentence topic coherence: 0.0780550661189 0.0996497079465 78% => OK
Sentence topic coherence SD: 0.0774556666235 0.0662205650399 117% => OK
Paragraph topic coherence: 0.130462117592 0.162205337803 80% => OK
Paragraph topic coherence SD: 0.0665192816472 0.0443174109184 150% => OK
automated_readability_index: 11.5 13.3589403974 86% => Automated_readability_index is low.
flesch_reading_ease: 69.11 53.8541721854 128% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.3 11.0289183223 75% => OK
coleman_liau_index: 11.2 12.2367328918 92% => OK
dale_chall_readability_score: 8.14 8.42419426049 97% => OK
difficult_words: 62.0 63.6247240618 97% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 9.6 10.498013245 91% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
Rates: 75.0 out of 100
Scores by essay e-grader: 22.5 Out of 30
Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.