The problem with the gene pool is that there's no lifeguard.

One reason given by Gerrold for the length of time taken between books 4 and 5 is the need to develop a writing style called "first person psychotic". The script was purchased by the TNG producers but eventually David Gerroldlved. The Star Wolf series reflects Gerrold's contention that due to the distances involved space battles would be more like submarine hunts than the dogfights usually portrayed—in most cases the ships doing battle would not even be able to see each other.