How Everything Works on Instagram: "When scientists poured molten aluminum and later cement into a massive abandoned ant colony to study its structure, they uncovered one of the most extraordinary examples of natural engineering ever documented. Once the material hardened, researchers spent days carefully excavating the surrounding soil, eventually revealing an enormous subterranean metropolis that extended several meters below the surface. The resulting metallic sculpture exposed a labyrinth of

On #CallToEarth Day, we're spotlighting the red imported fire ant — one of the world's most invasive species — newly discovered for the first time in Europe. From gardens to orchards to farmland, these ants threaten the green spaces people depend on. Scientists are in a race to stop the spread before it's too late. Read more: https://cnn.it/4ouj6NQ | CNN