Shout Out / Cell to Singularity: Evolution Never Ends

• The achievements are chock full of references. Just a handful:
  • The achievement for getting 25 fish is called "Just Keep Swimming".
  • The achievement for getting 25 units of the Age of Discovery is called "To Boldly Go".
  • The achievement for getting 200 Ankylosaurs is called "There Is No Dino, Only Zuul".
  • Buying the first Tyrannosaurus Rex displays the popup text "Hold on to your butts".
  • Buying 250 apes nets you, "The Apes of Wrath".
  • Buying 50 turtles unlocks "Cowabunga, Dude!"
  • Getting 50 Glires unlocks "What's Up, Doc?"
  • Getting 25 Ungulates unlocks "Don't Have A Cow, Man".
  • Building 250 Neolithic Age settlements unlocks "Temple of Doom".
  • 50 Emergent Ages unlocks "ET Phone Home".
  • Reaching the singularity in less than two minutes gives an achievement named "Gotta Go Fast" which features a picture of a blue hedgehog.
• The main loading screen mentions, "reticulating splines."