Because small text is small: the last line in the black frame, underneath the actual image says “Ancient proverb, author unknown”

The evolution of Wraithkind as it could have happened according to canon. According to the Legacy series, however, Wraith evolution took a different turn – one even more plausible IMO.

Yeah… Random… I always wanted to make one of those evolutionary diagrams. 

Copyright Stargate Atlantis / Wraith – MGM Television

Stargate: Atlantis further reading, links and resources

• WraithHiveship: Wraith artwork and literature community on deviantART.
• GateWorld: One of the best sources for everything Stargate.
• Wraith Defenders Club Project: Collection of links to Stargate actors’ websites and interesting blogs, includes a Wraith name list as compiled by members of the Wraith Defenders Club.