The spindletrooper exists in a symbiotic relationship with another creature, the ocean phantom, a future descendant of Siphonophora (creatures related to the Portuguese Man O' War). When the ocean phantom is attacked by a reef glider, the ocean phantom releases the spindletroopers to protect itself. Upon being released, the spindle troopers climb down the tentacles of the ocean phantom and spear the predatory reef gliders with its poisonous fangs. In return for protection, the ocean phantom feeds the spindle troopers. They mate only if a spindle trooper dies or if a new colony is started.
| The Future is Wild Species|
| 5 million years|
|Babookari | Carakiller | Cryptile | Deathgleaner | Desert rattleback | Gannetwhale | Gryken | Rattleback | Scrofa | Shagrat | Snowstalker | Spink|
|100 million years|
|Falconfly | False spitfire bird | Grass tree | Great blue windrunner | Lurkfish | Ocean phantom | Poggle | Reef glider | Roachcutter | Silver spider | Spindle trooper | Spitfire beetle | Spitfire bird | Spitfire tree | Swampus | Toraton|
|200 million years|
|Bumblebeetle | Deathbottle | Desert hopper | Forest flish | Garden worm | Gloomworm | Megasquid | Ocean flish | Rainbow squid | Sharkopath | Silverswimmer | Slickribbon | Slithersucker | Squibbon | Terabyte|