Question

The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as:

• A. Aptenodytes
• B. Neophron
• C. Psittacula
• D. Struthio

Hint:

Logic Tip: Always memorize common and scientific names in pairs for the Animal Kingdom.
Aptenodytes = Penguin (Swimmer)
Struthio = Ostrich (Runner)
Neophron = Vulture (Scavenger)
Psittacula = Parrot (Arboreal)

Answer 1

The Correct Option is A

Step 1 : Understanding the Question:
The question describes an avian species with specific evolutionary adaptations: it is flightless and its forelimbs (wings) have been modified into paddle-like structures specifically for swimming. We need to identify the correct genus that corresponds to this bird.
Step 2 : Key Formulas and Approach:
The approach involves identifying the specialized adaptations associated with flightlessness in different bird families:
1. Penguin adaptations: Wings modified into aquatic flippers for propulsion.
2. Ostrich adaptations: Wings reduced; legs modified for high-speed running.
3. Scientific terminology: Identifying the genus names for common birds.
Step 3 : Detailed Explanation:

Morphological Adaptation: While many birds have lost the ability to fly, their remaining limbs adapt to different tasks. The description of forelimbs modified into "paddles" is a unique adaptation of the penguin.

Aptenodytes (A): This is the scientific genus name for certain large penguins, including the Emperor Penguin. These birds are flightless and spend most of their lives in the water. Their wings are stiff, flat, and paddle-shaped, making them powerful swimmers.

Neophron (B): This is the genus of the Egyptian vulture. It is a bird of prey capable of long-distance flight and does not possess paddle-like limbs.

Psittacula (C): This is the genus for certain parrots (like the parakeet). These are typical birds of flight with wings adapted for aerial maneuvering.

Struthio (D): This is the genus of the ostrich. While an ostrich is flightless, its wings are small and used for balance or display. Its primary adaptation is for terrestrial running using its massive hindlimbs; it does not swim using its wings as paddles.

Step 4 : Final Answer:
The bird described—being flightless and having wings modified into paddles for swimming—is the penguin, which belongs to the genus {Aptenodytes}. Therefore, the correct option is (A).