Algae live inside the cells of salamanders, in the most intimate symbiotic relationship ever seen involving a vertebrate species. The algae live in developing salamander embyros and might help them grow, researchers say.
The spotted salamander lays its eggs in ponds, where a species of green algae called Oophila amblystomatis, an “egg-loving” unicellular alga, infiltrates the egg capsules.
Nip off the leg of this little axolotl salamander, and he grows it right back. The beasts' regenerative powers extend to their limbs, skin, jaws, those feathery antler-gills on its head, and even parts of its nervous system and brain. Now the U.S. Department of Defense has allocated $6.25 million to research how it does its thing, and whether we can do the same.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.