Match List-I with List-II:

List-I	List-II
Placental mammals	Counterpart Marsupials
(A) Anteater (B) Bobcat (C) Lemur (D) Flying squirrel	(I) Spotted cuscus (II) Numbat (III) Flying Phalanger (IV) Tasmanian tiger cat

Choose the correct answer from the options given below:

The correct option is (A)- (II), (B)- (IV), (C)- (I), (D)- (III).

This question is based on the concept of convergent evolution and adaptive radiation. Marsupials of Australia and placental mammals of other parts of the world show striking similarities in their structure and lifestyle. Despite belonging to different subclasses of mammals, they have evolved similar ecological adaptations to occupy comparable niches in their respective geographic locations.

Here is the detailed step-by-step matching of each placental mammal with its counterpart marsupial:
1. (A) Anteater matches with (II) Numbat: The placental anteater feeds primarily on ants and termites. The Numbat, also known as the banded anteater, is its marsupial counterpart in Australia, possessing a similar diet and long, sticky tongue.
2. (B) Bobcat matches with (IV) Tasmanian tiger cat: The bobcat is a wild cat found in North America. The Tasmanian tiger cat (native cat or Dasyurus) is a carnivorous marsupial that occupies a similar predatory niche in Australia.
3. (C) Lemur matches with (I) Spotted cuscus: The lemur is an arboreal primate. The spotted cuscus is an arboreal marsupial native to Australia and New Guinea, displaying similar tree-dwelling behavior and physical adaptations.
4. (D) Flying squirrel matches with (III) Flying Phalanger: The flying squirrel has a membrane of skin (patagium) between its limbs to glide through the air. The flying phalanger (sugar glider) is a marsupial that has independently evolved a similar gliding membrane to travel between trees.

Thus, matching the pairs correctly yields:
(A) - (II)
(B) - (IV)
(C) - (I)
(D) - (III)