How many legs does a duck and a dog have? - briefly
A duck has two legs, while a dog has four legs.
How many legs does a duck and a dog have? - in detail
Both ducks and dogs are quadrupeds, meaning they possess four legs each. This structural commonality is essential for their locomotion and overall mobility. Ducks, being waterfowl, use their legs primarily for swimming and occasional waddling on land, while dogs rely on their legs for a wide range of activities, including running, walking, and climbing. The legs of these animals are adapted to their respective environments and lifestyles, ensuring efficient movement and support.