Kṛṣṇa says that all these living entities... We are all living entities... Actually, every one of us is spirit soul, living entities. It does not matter whether I am a human being or other than human being, lower animals, birds, beasts, trees or higher celestial beings. There are many varieties of life. 8,400,000. Nine... Jalajā nava-lakṣāṇi. In the water there are living entities of 900,000 varieties. We simply know that there are some fishes and crocodiles or sharks in the water, but śāstra, Vedic śāstras, they give definite information, how many forms and varieties of life are there within the water: 900,000. How many we have seen? Our scientists, our botanists, how many they have seen? So actually you cannot have perfect knowledge by the experimental method.