Two of every animal and seven of some, remember, according to Mosaic dietary laws which - er - hadn't been written yet. Nevertheless, many species were apparently wiped out once the Arkonauts made landfall and burned those offerings.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'