The mysterious bond between man and nature

Stunning findings on the seven human senses, the heartbeat of trees, and the question of whether plants have consciousness.

Do we have something like a seventh sense that can sense danger? Why does our immune system respond to the colours and smells of the forest? Is it possible that trees breathe? And should we view plants as intelligent beings? Petr Wohllenen once again shows us how close we are to nature and how connected we remain to it.