Every year people burn their feet in the Valley of Geysers and caldera of Uzon volcano. For some reason, they are mostly Russians, not foreigners. They do not pay attention to the warnings. But what about bears? They cannot read the instructions and wooden decks are built not for them. And they do not wear shoes..
For millions of years of evolution animals have learnt to use heat for their own good. Some birds make their nests on the warm ground, the volcanic soil works like an incubator. Nestling grows faster and begin flying earlier, they have more chances for survival.
Bears are also smart enough to use the heat of the volcano for their own good. They like to eat the first grass appearing on the warm soil. On some days 20 or 30 bears can accumulate at one place of the valley. It's unique even for Kamchatka.