Yartratdid is a god.

He takes the form of a plump, sapient mouse.

Yartratdid created a down quark five trillion years ago.

If you believe in Yartratdid, he will be happy.

If you do not believe in Yartratdid, he will destroy your favourite star.

Yartratdid's most sacred site is Makopong in Botswana.

Yartratdid's Holy Commandments

1. Walk at least eight thousand metres per day.

2. Do not drink from vessels made of earth.

3. Do not fashion models of living things.

4. Do not wear nickel on your body.

5. Never write about eukaryotes.