The kora are an aquatic species of intelligent coral common in warmer ocean climates that have historically been an enabler of oceanic human societies in areas they couldn't otherwise exist. Although kora harden into a stony toughness after death (that can be used in everything from construction to weaponry), there's also a short window after their death in which they're still soft enough to cook. Kora reproduce quickly and often, often dominating their local ecosystem. In times where there aren't enough food sources, kora can also often be found floating along the water's surface where they use a variation of photosynthesis to absorb energy from sunlight.