Final answer:
A silent male toad that hangs around a singing male's territory to intercept females is known as a satellite male. This strategy allows them to conserve energy and still mate with females attracted by the vocal male’s calls.
Step-by-step explanation:
A silent male toad that hangs around a singing male's territory is known as a satellite male. In the world of toads and other amphibians, it is common for male toads to attract females through vocalizations, such as the 'ribbiting' mating calls that advertise their presence and fitness to potential mates. These calls also serve to establish territorial boundaries and deter rivals. However, some males employ alternative strategies, such as the satellite male behavior where they stay quiet and intercept females that are drawn towards the vocal male's territory, thereby increasing their chances of mating without expending energy on calling themselves.