Both the lecture and the listening attempt to give an explanation about how humpback whales are able to migrate for long distance for feeding and mating purposes. The lecturer thinks that the explanations given by the reading are not convincing as explained by the followings.
First, the reading suggests that the high degree of brain complexity of these mammals makes them able to use stars to navigate by, but the lecturer points out that this thesis is not convincing. He notes that in nature exist other medium-intelligent animals such as some birds that have the ability to migrate and orientate similarly to humpback whales, therefore he states that migration is more related with a born instinct than intelligence.
Second, the lecturer believes that there may be another explanation, he rebuts that most likely humpback whales orientate themselves thanks to a particular organ, the magnetite, which makes these animals sensitive to the earth magnetic field, therefore they use it to orientate during long-distance migration. This contrasts the theory made in the reading that whales use stars for orientation.
Third, the lecturer says that spy-hopping is rare but it has been observed in sharks too, which do not migrate, and also, it has been observed in whales during the day, so this unusual behavior, very likely, has not the purpose to come to the surface and look at stars for orientation.
- TPO-48 - Independent Writing Task Do you agree or disagree with the following statement?Because modern life is very complex, it is essential for young people to have the ability to plan and organize. 70
- TPO-48 - Integrated Writing Task In recent years, many frog species around the world have declined in numbers or even gone extinct due to changes in their environment. These population declines and extinctions have serious consequences for the ecosystems 78
- TPO-01 - Independent Writing Task Do you agree or disagree with the following statement?At universities and colleges, sports and social activities are just as important as classes and libraries and should receive equal financial support.Use specific reaso 3
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- TPO-33 - Integrated Writing Task Carved stone balls are a curious type of artifact found at a number of locations in Scotland. They date from the late Neolithic period, around 4,000 years ago. They are round in shape; they were carved from several types o 76
Transition Words or Phrases used:
also, but, first, look, may, second, similarly, so, therefore, third, such as
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 10.4613686534 76% => OK
Auxiliary verbs: 1.0 5.04856512141 20% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 24.0 22.412803532 107% => OK
Preposition: 26.0 30.3222958057 86% => OK
Nominalization: 9.0 5.01324503311 180% => OK
Performance on vocabulary words:
No of characters: 1188.0 1373.03311258 87% => OK
No of words: 229.0 270.72406181 85% => More content wanted.
Chars per words: 5.18777292576 5.08290768461 102% => OK
Fourth root words length: 3.89008302616 4.04702891845 96% => OK
Word Length SD: 2.80931662028 2.5805825403 109% => OK
Unique words: 136.0 145.348785872 94% => More unique words wanted.
Unique words percentage: 0.593886462882 0.540411800872 110% => OK
syllable_count: 371.7 419.366225166 89% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 5.0 8.23620309051 61% => 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: 7.0 13.0662251656 54% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 32.0 21.2450331126 151% => The Avg. Sentence Length is relatively long.
Sentence length SD: 79.2912481981 49.2860985944 161% => OK
Chars per sentence: 169.714285714 110.228320801 154% => OK
Words per sentence: 32.7142857143 21.698381199 151% => OK
Discourse Markers: 11.0 7.06452816374 156% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => More positive sentences wanted.
Sentences with negative sentiment : 2.0 4.45695364238 45% => More negative sentences wanted.
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: 0.424370392865 0.272083759551 156% => OK
Sentence topic coherence: 0.175417054642 0.0996497079465 176% => OK
Sentence topic coherence SD: 0.0869783846035 0.0662205650399 131% => OK
Paragraph topic coherence: 0.234297348597 0.162205337803 144% => OK
Paragraph topic coherence SD: 0.0447551164213 0.0443174109184 101% => OK
Essay readability:
automated_readability_index: 19.4 13.3589403974 145% => OK
flesch_reading_ease: 39.0 53.8541721854 72% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 15.8 11.0289183223 143% => OK
coleman_liau_index: 13.41 12.2367328918 110% => OK
dale_chall_readability_score: 9.43 8.42419426049 112% => OK
difficult_words: 61.0 63.6247240618 96% => OK
linsear_write_formula: 14.0 10.7273730684 131% => OK
gunning_fog: 14.8 10.498013245 141% => OK
text_standard: 14.0 11.2008830022 125% => OK
What are above readability scores?
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Rates: 88.3333333333 out of 100
Scores by essay e-grader: 26.5 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.