A Martian Tweak of the Current Era | |
![]() Image from Felipe Brando Cadavid | |
| A Martian tweak from the current era, adapted to the atmospheric conditions that exist on Blue Mars. Additional nostrils at the top of the nose allow the tweak to breathe in and out in a cyclic fashion, absorbing extra oxygen from the 0.7 bar atmosphere. These tweaks are tolerant of high levels of greenhouse gases, such as carbon dioxide and halocarbons.}> | |
A Martian Tweak of the Pre-Nanoswarm Era | |
![]() Image from Steve Bowers | |
| An early Martian tweak, adapted to very low pressure environments (these tweaks did not remain on the planet once the atmosphere of Mars passed 100 millibars), and members of this clade have migrated to many locations in the Terragen Sphere since this time, particularly New Mars | |






