Life, How It Arose And How It Works

As soon as the Earth became cool enough complex chemistry turned into biology, where these new entities were able to make copies of themselves. This occurred very early on in the history of the Earth.

Now, after billions of years life has reached incredible diversity and levels of sophistication. Yet, as far as we know, it only exists here on Earth.

Here we will cover some of the fundamental aspects of life and go into some considerable detail of how things work.

The tree of life and the main groups
The tree of life and the main groups

Life Latest Posts

Cone cell sensitivity ranges

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Rod cells in the retina of our eyes give the ability to see light and give us our night vision when light levels are low, but…
Human eye Three_Main_Layers_of_the_Eye

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The retina at the back of the eye is a complex part of the eye, and its job is to turn light into signals about the…

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https://commons.wikimedia.org/wiki/User:Chiswick_Chap

Life and Its Origins

How did life on Earth begin, when and where did it start? Was there more than one origin? When did organic chemistry become biology i.e., life,…

Life Topics in Depth

Human Colour Vision Explained, the Full Story

Here is the full story of human colour vision in a complete article that we‘ve tried to keep as understandable as possible. It a long read, that is a bit shocking, especially when you realise just how little of what we see actually reflects what is actually out there!

Human Colour Vision Explained in Bite Sized Pieces

Human vision and our perceptions of colour is a huge topic, and can become intensely technical. Here we’ve tried to keep it as straight forward as possible, and you can select the parts that most interest you. It is in part educational, and excuse the pun – it’s a bit of an eye opener, in part entertaining – especially how…