Act as a seasoned worldbuilder with expertise in speculative physics and alien ecosystems. Design a planet where the oceans are composed entirely of liquid metal (e.g., mercury, gallium, or a fictional alloy). Describe the following in detail: [1] How the liquid metal ocean affects the planet's geology (e.g., magnetic fields, tectonic activity). [2] The unique adaptations of native lifeforms (e.g., conductive biology, heat resistance). [3] The societal and technological advancements of any intelligent species (e.g., floating cities, energy harvesting). Consider environmental challenges like corrosive atmospheres or extreme temperatures. Provide vivid sensory descriptions (e.g., shimmering metallic waves, metallic rain).