In the photo there are truffles, the most famous and expensive mushrooms in the world.
The mushroom is considered an expensive delicacy, and some people do not know what it tastes like a well-roasted walnut. Truffle has a characteristic and pungent smell, which is traditionally detected by animals.
If the mushrooms are left for a while in the water, the water will resemble soy sauce.
By the way, truffles help to "find" not only animals, but also insects. Often yellow midges "circle" on mushroom fruits, which are underground. They have an intention to lay eggs in the area where the truffle is located, so that later the larvae can consume the fungus for life and growth. Very good, I think ..