Leaning about the fragile web of life

today i am explaining what i learnt about the fragile web of  life i learnt that three and a half billion year ago life first emerged in the water and evolved to land,plants mother nature covered the earth over a million of year an amazing variety of animals and habitat,The ecosystems develop this enabled diversity of life form to increase rapidly in number on our planet tiny microbes invisible to the eye to enormous giants,different animals survive in different habitats.

when amazes me: that three and a half billion year ago life first emerged in the water and evolved to land

what happened when they first came out of the water, Could they just come out of the water like if they had superpowers to breathe the air