why the wholes use the stars for navigate?

Essay topics:

why the wholes use the stars for navigate?

The reading and the listening lecture talk about the way that humpback whale uses to migrate. While the reading claims that those animals use the stars for navigation. The lecturer refutes this idea by providing refuting clues.
First of all, the reading states that humpback seems to be intelligent to use stars to navigate. Also, their brain is so complex giving them well developed cognitive ability to use the stars as a guide. The lecturer says that there is no connection between the intelligence and the using of stars. He states that ducks navigate by stars but it is not a clever animal and this property just borns with some animals.
In addition to that, the reading claims that the humpback maintains their movement in the straight direction because they orient themselves by stars, they provide them with external signs to keep that way of navigating. The professor counters this by saying that those animals have magnetite piece within their brain that it is sensitive to the earth magnetic, so this helps to direct them a straight way.
Lastly, the reading states that these wholes raise their head above the water to see the stars then they back to water because also they use the Phy-hopping to takes information from the sky to navigate. The professor claims that there are many animals like sharks use the Phy-hopping to hunt other animals, although they do not migrate. So it is not necessary to use this Hopping to follow the stars information.

Votes
Average: 7.6 (1 vote)
Essay Categories

Comments

Grammar and spelling errors:
Line 4, column 395, Rule ID: POSSESIVE_APOSTROPHE[2]
Message: Possible typo: apostrophe is missing. Did you mean 'stars'' or 'star's'?
Suggestion: stars'; star's
...ssary to use this Hopping to follow the stars information.
^^^^^

Transition Words or Phrases used:
also, but, first, lastly, so, then, well, while, in addition, first of all

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

Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 0.0 5.04856512141 0% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 37.0 22.412803532 165% => Less pronouns wanted
Preposition: 32.0 30.3222958057 106% => OK
Nominalization: 8.0 5.01324503311 160% => OK

Performance on vocabulary words:
No of characters: 1219.0 1373.03311258 89% => OK
No of words: 250.0 270.72406181 92% => More content wanted.
Chars per words: 4.876 5.08290768461 96% => OK
Fourth root words length: 3.97635364384 4.04702891845 98% => OK
Word Length SD: 2.43271371106 2.5805825403 94% => OK
Unique words: 134.0 145.348785872 92% => More unique words wanted.
Unique words percentage: 0.536 0.540411800872 99% => OK
syllable_count: 372.6 419.366225166 89% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 3.25607064018 92% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 51.0317847577 49.2860985944 104% => OK
Chars per sentence: 101.583333333 110.228320801 92% => OK
Words per sentence: 20.8333333333 21.698381199 96% => OK
Discourse Markers: 6.16666666667 7.06452816374 87% => 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 : 1.0 4.45695364238 22% => More negative sentences wanted.
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.237087513353 0.272083759551 87% => OK
Sentence topic coherence: 0.0966657638159 0.0996497079465 97% => OK
Sentence topic coherence SD: 0.0753729057499 0.0662205650399 114% => OK
Paragraph topic coherence: 0.142955109018 0.162205337803 88% => OK
Paragraph topic coherence SD: 0.0856012451397 0.0443174109184 193% => OK

Essay readability:
automated_readability_index: 12.0 13.3589403974 90% => 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: 11.02 12.2367328918 90% => OK
dale_chall_readability_score: 7.79 8.42419426049 92% => OK
difficult_words: 50.0 63.6247240618 79% => More difficult words wanted.
linsear_write_formula: 7.0 10.7273730684 65% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?

---------------------

Rates: 76.6666666667 out of 100
Scores by essay e-grader: 23.0 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.