Question

The adaptation of mammals to almost all possible modes of life parallels that of reptiles in Mesozoic times, and except for greater intelligence the mammals do not seem to have done much better than corresponding reptilian forms. The bat is doubtless a better flying animal than the pterosaur, but the dolphin and whale are hardly more fish like than the ichthyosaur. Many swift running mammals of the plains, like the house and antelope, must excel any of the dinosaurs. The tyrannosaur was more ponderous and powerful carnivore than any flesh eating mammal, but the lion or tiger is probably a more efficient and dangerous beast of prey because of a superior brain. Unlike mammal animals or any animals for that matter, man is able by mechanical means to conquer the physical world.

This adaptation produces gradual changes of form and structure. It is biological characteristic of the youthful, plastic stage of a group. Early in its career, an animal assemblage seems to possess capacity for change, which as the unit becomes old and fixed, disappears. The generalized types of organisms retain longest the ability to make adjustments when required and it is from them that new fertile stocks take origin-certainly not from any specialized end products. So, we witness the birth, plastic spread in many directions, and the extinction in the mammals.

a) What living beings are compared in the passage and how?

b) What are the characteristics of the adaptation of the mammals?

c) What is the difference between men and animals even though they both are mammals?

d) What distinguishes a tiger or lion from other carnivores?

e) Give a suitable title to the passage.

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Answer 1

Answer:

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