A Tiny Darwin's Bark Spider Shoots a Silk Line Over 25 Meters to Begin Spinning Her Giant Web

SOLVED: The silk of Darwin's bark spider (Caerostris darwini), named after the naturalist, Charles Darwin, is the strongest biological material ever discovered (see the photo). In fact, many of the mechanical properties of the silk supersede those of steel. While the Young’s modulus for steel ( 2.00 × 1011 N/m2) is larger than the silk (1.15 × 1010 N/m2), the density of the silk is much less, such that the strength-to-density ratio of the silk is about five times that of steel. Consider a 10.0-c

🕷️ The Darwin’s bark spider (Caerostris darwini) is a true engineering marvel of nature. Found only in Madagascar, it builds the largest spider webs on Earth, sometimes stretching over rivers with anchor lines up to 25 meters long. Its silk is tougher than Kevlar and stronger than any known natural fiber, allowing the web to withstand water currents and catch prey much larger than ordinary insects. #scientistafghan #darwinspider #nature #spider | Scientist Afghan