Like many creatures, humpback whales migrate long distances for feeding and mating purposes. How animals manage to migrate long distances is often puzzling. In the case of humpback whales, we may have found the answer: they may be navigating by the stars,

The article states that humpback whales migrate long distances navigating by the stars and provides three reasons for support. However, the professor explains that these reasons are unconvincing and refutes each of the reasons.

First, the reading argues that humpback whales seem to be intelligent enough to use stars to navigate. Nevertheless, the professor refutes this point by stating that there is no connection between intelligence and navigation. He adds that ducks know how to navigate by stars instinctively, but they are not intelligent.

Second, the article claims that humpback whales migrate in straight lines. So they use an external object such as stars to do it. The professor contends that they may use another object such as the magnetic field.

Third, the reading avers that humpback whales exhibit an unusual behavior; they sometimes look upward when their head is above the water. They may look at the stars for navigation. The lecture opposes this point by saying that it is true that looking at stars is a rare phenomenon, but some sharks do that for finding food, not for migration or navigation. He adds that humpback whales sometimes do this activity during the day, so they can not see the stars.

Votes
Average: 7.1 (1 vote)
Essay Categories

Transition Words or Phrases used:
but, first, however, look, may, nevertheless, second, so, third, such as, it is true

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 27.0 22.412803532 120% => Less pronouns wanted
Preposition: 16.0 30.3222958057 53% => More preposition wanted.
Nominalization: 6.0 5.01324503311 120% => OK

Performance on vocabulary words:
No of characters: 1032.0 1373.03311258 75% => OK
No of words: 202.0 270.72406181 75% => More content wanted.
Chars per words: 5.10891089109 5.08290768461 101% => OK
Fourth root words length: 3.76996954942 4.04702891845 93% => OK
Word Length SD: 2.63591432133 2.5805825403 102% => OK
Unique words: 113.0 145.348785872 78% => More unique words wanted.
Unique words percentage: 0.559405940594 0.540411800872 104% => OK
syllable_count: 306.0 419.366225166 73% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => 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: 2.0 1.51434878587 132% => OK
Preposition: 0.0 2.5761589404 0% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 16.0 21.2450331126 75% => The Avg. Sentence Length is relatively short.
Sentence length SD: 34.9376428639 49.2860985944 71% => OK
Chars per sentence: 86.0 110.228320801 78% => OK
Words per sentence: 16.8333333333 21.698381199 78% => OK
Discourse Markers: 7.0 7.06452816374 99% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 1.0 4.45695364238 22% => More negative sentences wanted.
Sentences with neutral sentiment: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.248519473148 0.272083759551 91% => OK
Sentence topic coherence: 0.094832481007 0.0996497079465 95% => OK
Sentence topic coherence SD: 0.0767259460662 0.0662205650399 116% => OK
Paragraph topic coherence: 0.150361477537 0.162205337803 93% => OK
Paragraph topic coherence SD: 0.0399408368945 0.0443174109184 90% => OK

Essay readability:
automated_readability_index: 11.1 13.3589403974 83% => Automated_readability_index is low.
flesch_reading_ease: 63.7 53.8541721854 118% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 8.4 11.0289183223 76% => OK
coleman_liau_index: 12.06 12.2367328918 99% => OK
dale_chall_readability_score: 7.95 8.42419426049 94% => OK
difficult_words: 45.0 63.6247240618 71% => More difficult words wanted.
linsear_write_formula: 7.0 10.7273730684 65% => OK
gunning_fog: 8.4 10.498013245 80% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?

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Rates: 71.6666666667 out of 100
Scores by essay e-grader: 21.5 Out of 30
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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.