In the GrowPods colonizing outer space, scientists are observing new and exciting forms of symbiosis. In one, the Abyssinian mud elk has exchanged its antlers for the cashew tree, which sprouts directly from the mighty beast’s pate. Flourishing in the oxygen-rich environment, the branches produce nuts as fast as the golden flightless macaws can pluck and crack them. They drop the meat through the canopy to grateful one-armed sloths. These challenged arboreal browsers emerged from the jungles of Guyana at the end of the Million Year War, but no need to feel sorry for them. Our slow, smiling friends also get assistance from the translucent teardrop ant of the Lost Serengeti. This peculiar arthropod lives a solitary life in a small swath of fur just below the sloth’s eye, grooming fleas from our happy amputee with its retractable, needle-like proboscis.