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.
Magnetic resonance imaging (MRI) is a crucial diagnostic tool and an all-around cool technology that creates three-dimensional views of living tissues without being invasive or harming living tissues. But MRI is also limited; while telescopes see further and further into the cosmos and microscopes see smaller and smaller bodies, MRI can only go so small. But now, by blending atomic force microscopy with MRI's 3-D capabilities, MIT researchers are making a 3-D microscope 100 times more powerful than hospital MRI machines.
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.