Universe consists of 8,400,000 species of plants, animals and humans.

There are 900,000 species living in the water. There are also 2,000,000 non-moving living entities (sthavara) such as trees and plants. There are also 1,100,000 species of insects and reptiles. There are 1,000,000 species of birds.

As far as quadrupeds are concerned there are 3,000,000 varieties. There are 400,000 human species. (Padma Purana) I became an animal subjected to the gunas and my free will was replaced by the instincts. Gradually I will be elevated to the uncivilized human level.

This may take me a long time if I am killed in the animal body by ignorant humans. "While rotating in the cycle of birth and death again and again in different species because of his own fruitive activities, the dependent living entity, by good fortune, may happen to become a human being. This human birth is very rarely obtained." (SB 8.22.25)

"After many, many births and deaths, one achieves the rare human form of life, which, although temporary, affords one the opportunity to attain the highest perfection. Thus a sober human being should quickly endeavor for the ultimate perfection of life as long as his body, which is always subject to death, has not fallen down and died. After all, sense gratification is available even in the most abominable species of life, whereas Krsna consciousness is possible only for a human being." (SB 11.9.29)