Here is all you want to know about English! Start your FREE email English course now!
computerized representation of an actual object
full quiz correct answer

TOEFL listening: A university lecture in Biology

Overview of TOEFL listening part
TOEFL lecture 1
TOEFL lecture 2
TOEFL lecture 3
TOEFL lecture 4
TOEFL lecture 5
TOEFL lecture 6
TOEFL lecture 7
TOEFL lecture 8
TOEFL lecture 9
TOEFL lecture 10
TOEFL lecture 11
TOEFL lecture 12
TOEFL lecture 13
TOEFL lecture 14
TOEFL lecture 15
TOEFL lecture 16
TOEFL lecture 17
TOEFL lecture 18
TOEFL lecture 19
TOEFL lecture 20
TOEFL lecture 21
TOEFL lecture 22
TOEFL lecture 23
TOEFL lecture 24
TOEFL lecture 25
TOEFL lecture 26
TOEFL lecture 27
TOEFL lecture 28
TOEFL lecture 29
TOEFL lecture 30
TOEFL lecture 31
TOEFL lecture 32
TOEFL lecture 33
TOEFL lecture 34
TOEFL lecture 35 — Script Q&A
TOEFL lecture 36
TOEFL lecture 37
TOEFL lecture 38
TOEFL lecture 39
TOEFL lecture 40
TOEFL lecture 41
TOEFL lecture 42
TOEFL lecture 43
TOEFL lecture 44
TOEFL lecture 45
TOEFL lecture 46
TOEFL lecture 47
TOEFL lecture 48
TOEFL lecture 49
TOEFL lecture 50
Conversations (50 audio exercises)
Lectures (50 audio exercises)
Prep forum for the TOEFL test
English Language Exercises 2206 English Exercises
This English grammar test package will help you learn new phrases, idioms, expressions and grammar structures every single day. And you won't even have to cram any grammar rules or vocabulary words into your head. Instead, you will be absorbing bits and pieces of the English language almost without realizing it.
Get FREE English course via e-mail 
50 TOEFL lectures   50 TOEFL conversations
Listen to a conversation 23487 listened   

Please activate Flash to use MP3 player.

Improve your progress in learning English! —
These users have taken this test.
Next users >
See progress report of Iranibt

one year ago
See progress report of Unchan

one year ago
See progress report of Alive

one year ago
See progress report of Brachida

one year ago
Do you want to be in this list? Please register on our forum und take the tests with your own progress report!

50 TOEFL lectures
50 TOEFL lectures
A great variety of English listening comprehension tests that will help you increase your TOEFL test score.
  • based on TOEFL academic lectures
  • written and recorded by experienced US authors and voice-over specialists

  • TOEFL Preparation tests Increase your TOEFL test score with
    120 Vocabulary + 100 Grammar tests
    600 word flashcards plus an ESL book
    Dear Friend,
    if you have any questions or comments regarding this article, please click here: Wanted: Feedback on TOEFL Listening Exercises.
    50 TOEFL lectures   50 TOEFL conversations

    TOEFL Listening Comprehension Transcript

    Listen to part of a university lecture in Biology.

    Professor: Well, we've now studied the main subclass of mammals, the placental mammals, and also the subclass of marsupials- and now we ought to just quickly survey the third and smallest subclass, an odd little group called the 'monotremes'. The best-known monotreme, of course, is the duck-billed platypus, and I know you've all heard of that strange portmanteau animal. Well, the platypus is the only member of its family. There's just a single species of ornithorhynchid- this family name just means 'bird-nosed'. The other family of monotremes are the echidnas or spiny anteaters, the tachyglossids. This family name means 'fast-tongued', and there're only four species of these. So altogether there're just five species of monotremes.

    The platypus lives only in the streams and ponds of eastern Australia, and the echidnas live in the forests of Australia and nearby New Guinea. So their ranges are very restricted. Nevertheless, a fossil monotreme found in Argentina suggests that the monotremes were once globally distributed.

    These animals have a number of characteristics similar to reptiles, but it is important to realize that they're no more closely related to reptiles than any other mammal group, and it'd be a mistake to consider them as more primitive. It's just that after evolving from their therapsid ancestors, the monotremes broke off from the other mammals- about 150 million years ago- and went their own evolutionary way.

    Platypuses, or platypi, look very different from echidnas, but these animals have several characters in common that separate them clearly from the placentals and marsupials. First, well, as their name says, they're monotremes- they're 'single-holed'. Their genital and excretory functions exit from the body from the same aperture, called a cloaca. Monotremes also have a low metabolic rate- that is, a lower body temperature- and they lay eggs. Like other mammals, though, they lactate, they produce milk, but they have no nipples. The females just secrete milk onto their skin, where the babies lap it up. The other things that make these animals mammals are that they're covered in fur, they have a mammalian dental pattern, and they have a four-chambered heart.

    Nevertheless, the duck-billed platypus is so bizarre-looking that when it was first discovered by Western scientists, at the end of the 18th century, they thought it was a hoax, a ruse- a real portmanteau animal, an animal made up by attaching a duck's beak to a mole's skin. Because the first specimen arrived in England by way of the Indian Ocean, scientists suspected that the creature was actually sewn together by Chinese or Japanese sailors, who were known for their skill at this kind of practical joke.

    The platypus's bill is like leather- it's soft and flexible, and it's sensitive both to touch and to weak electric fields. It uses both of these to find its food- crustaceans and other invertebrates- in the muddy waters it lives in. It has soft, thick, water-resistant fur, it has webbed feet, and a broad, flat tail- so it's well-adapted to its aquatic existence, and it probably hasn't changed much in the last few million years. And don't try to pick one up- the males have poisonous spurs on their back legs that can be very dangerous!

    Now, the echidnas- some recent DNA research has suggested that the echidnas evolved from a platypus ancestor relatively recently- only about 30 million years ago- so their evolution's been more active than the platypus's. Echidnas- or spiny anteaters, which is a much clearer name for them- sorry, I'm just used to calling them echidnas- anyway, they're totally different-looking animals. They are stocky, sturdily-built guys with powerful claws and digging muscles. They live in forested country, where they dig for termites, ants and other invertebrates. Instead of a broad duck's bill, they have a long, tubular, toothless snout and a long, extendible, sticky tongue- which accounts for their family name, tachyglossids, of course. Like the platypus, they also have electroreceptors to help locate food. Echidnas are covered with spines, and when they're threatened, they erect these spines and roll into a prickly ball that's very hard to attack.

    And one little-known behavior of the echidnas is their 'love train'. Echidnas are normally solitary animals, but in breeding season, a female will attract several to a dozen males, who follow her around closely in single file for up to six weeks, before she finally chooses one to mate with. Then she lays her single egg in a temporary pouch that she develops.

    Platypus populations seem to be holding their own, and echidnas sometimes wander across suburban gardens in Australia, but the New Guinea Long-beaked Echidna is in danger of extinction- it is a highly-sought-after prize for local traditional hunters. It'd be a shame to lose such interesting creatures from the earth, so I hope that efforts will be made by the Indonesian and Papua-New Guinean governments to protect these little guys.

    50 TOEFL lectures
    50 TOEFL lectures
    A great variety of English listening comprehension tests that will help you increase your TOEFL test score.
  • based on TOEFL academic lectures
  • written and recorded by experienced US authors and voice-over specialists
  • 50 TOEFL lectures   50 TOEFL conversations

      copyright © 2003—2019  
    Get FREE English course via e-mail