4steps from the big bang
29things can go into it
LUCA
NaturalLiving
The last universal common ancestor: the single-celled organism every living thing on Earth descends from. Where it lived is still argued.
First appearedAbout 4.2 billion years ago
Made Of
Everything is made of something.← What it takes
What it leads to →
The last universal common ancestor: the single-celled organism every living thing on Earth descends from. Where it lived is still argued.
From the big bang to LUCA
The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.
big bang13.8 bn yrs ago
Hhydrogen13.8 bn yrs ago
amino acidsdate unknown
proteinsc. 4.2 bn yrs ago
LUCAc. 4.2 bn yrs ago