Made Of

Everything is made of something.

← What it takes

What it leads to →

Evolved from

complex cell

Needs

airwater

3steps from the big bang

39things can go into it

early animals

NaturalLiving

The first animals were soft-bodied sea creatures, likely sponges. Sponges can survive on very little oxygen, so how much oxygen the first animals needed is still debated.

First appearedAbout 600 million years ago

Evolved into

fishinsects

The first animals were soft-bodied sea creatures, likely sponges. Sponges can survive on very little oxygen, so how much oxygen the first animals needed is still debated.

From the big bang to early animals

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

water4.4 bn yrs ago

early animalsc. 600 m yrs ago