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Asked by much science, many experiement, such wow. to Ceri, Marikka, Matt, Rob, Sally on 12 Nov 2014.
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Ceri Dare answered on 12 Nov 2014:
Probably through amphibians, which mostly live in water, but can live on land for short times and breathe air.
Here’s a video of mudskippers, which are a sort of fish which can live in air for short times: https://www.youtube.com/watch?v=FLh4ODMBGJE
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Sally Cutler answered on 12 Nov 2014:
Ceri has already given you some of the probable transition stages here. As we explore our world more, we are finding life forms in all kinds of extreme environments – particularly microbial life. Even within our body there are some pretty strange places to live with some even living in our acid-filled stomach! You have to marvel at how every environment can be lived in. So I guess it was no surprise that life forms adapted to living on the land.
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Marikka Beecroft answered on 12 Nov 2014:
Ceri has given a good answer! also if you are curious this page explains all about it and how evolution changed fins in fish to something that could be used to walk on land.
http://evolution.berkeley.edu/evolibrary/article/evograms_04 -
Robert Hampson answered on 12 Nov 2014:
We know very little about how life began initially (this is called biogenesis) but we do know a lot about how it developed (evolution). I don’t know the specifics of the pathway of evolution from sea to land.
However, I hear that fish/water creatures swam up rivers and into areas where occasionally the water disappeared, and they slowly developed the ability to breathe the air so they could survive when this happened. Other creatures also developed primitive fin/leg things which allowed them to slowly move around on land to escape predators. However, until plants colonised the land there was no point going there anyway as there was no food. I have no idea of how the ancestors of plants adapted for life on land…
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