In the reading passage, the author states that humpback whales may navigate by stars to migrate long distances. However, the professor refutes this idea and thinks the reasons listed in the reading are unconvincing.
First of all, the author claims that humpback whales are intelligent enough to navigate by stars, while the professor states that there is no correlation between intelligence and an animal's ability to use stars for navigation. For example, some birds such as ducks evolved the ability for navigation by stars. And ducks are only of general cognitive ability, not as advanced as humpback whales'. So, it seems that there is no real connection between intelligence and the ability to use stars for navigation.
In addition, the author argues that humpback whales have no land features in the ocean to help them migrate in straight lines for long distance. So, they have to rely on stars. However, the professor challenges this statement by pointing out that the presence of biomagnetite in the brains of humpback whales enables them to be sensitive to Earth's magnetic field. It is Earth's magnetic field that helps humpback whales to migrate.
Finally, the professor cast doubt on what is stated in the reading that humpback whales look at the stars through spy-hopping, which is a rare behavior among marine animals. He claims that there is no connection between spy-hopping and looking at stars since there are other animals exhibit this behavior but do not migrate, such as sharks. Also, humpback whales do spyhop during the day when there are no stars can be seen in the sky. So, the statement that humpback whales adopt spyhopping to look at stars is not convincing.
Grammar and spelling errors:
Line 3, column 183, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'animals'' or 'animal's'?
Suggestion: animals'; animal's
...correlation between intelligence and an animals ability to use stars for navigation. Fo...
^^^^^^^
Transition Words or Phrases used:
also, but, finally, first, however, look, may, so, while, for example, in addition, such as, first of all
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 2.0 5.04856512141 40% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 19.0 22.412803532 85% => OK
Preposition: 39.0 30.3222958057 129% => OK
Nominalization: 13.0 5.01324503311 259% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1414.0 1373.03311258 103% => OK
No of words: 280.0 270.72406181 103% => OK
Chars per words: 5.05 5.08290768461 99% => OK
Fourth root words length: 4.09062348924 4.04702891845 101% => OK
Word Length SD: 2.6117767039 2.5805825403 101% => OK
Unique words: 136.0 145.348785872 94% => More unique words wanted.
Unique words percentage: 0.485714285714 0.540411800872 90% => More unique words wanted or less content wanted.
syllable_count: 432.9 419.366225166 103% => 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: 7.0 8.23620309051 85% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 51.149440917 49.2860985944 104% => OK
Chars per sentence: 101.0 110.228320801 92% => OK
Words per sentence: 20.0 21.698381199 92% => OK
Discourse Markers: 7.5 7.06452816374 106% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 6.0 4.33554083885 138% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.47920574935 0.272083759551 176% => OK
Sentence topic coherence: 0.174230908986 0.0996497079465 175% => OK
Sentence topic coherence SD: 0.0674533657803 0.0662205650399 102% => OK
Paragraph topic coherence: 0.27770885409 0.162205337803 171% => OK
Paragraph topic coherence SD: 0.0576849073797 0.0443174109184 130% => OK
Essay readability:
automated_readability_index: 12.4 13.3589403974 93% => Automated_readability_index is low.
flesch_reading_ease: 59.64 53.8541721854 111% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 12.01 12.2367328918 98% => OK
dale_chall_readability_score: 7.84 8.42419426049 93% => OK
difficult_words: 57.0 63.6247240618 90% => OK
linsear_write_formula: 12.0 10.7273730684 112% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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Rates: 73.3333333333 out of 100
Scores by essay e-grader: 22.0 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.