Engineering News Today — August 11, 2026

As engineers, we're often reminded that human innovation is not solely the domain of modern societies. Today's headlines illustrate this point, with archaeologists revealing that ancient Colombians constructed a massive water system without the benefit of centralized rule. This impressive feat of engineering highlights the ingenuity and resourcefulness of our ancestors. Meanwhile, in a sobering reminder of the importance of resilient infrastructure, a magnitude 7.4 earthquake struck western Colombia, resulting in significant loss of life and underscoring the need for robust design and preparedness in the face of natural disasters.

Beyond the realm of human engineering, today's headlines also offer fascinating insights into the natural world. Researchers have discovered that oak leaves are home to distinct microbial communities on their upper and lower surfaces, highlighting the intricate relationships between organisms and their environments. In other news, scientists have found that considering the "power of three" can help predict people's preferences, while a study on common carp relatives has shed light on how to control outbreaks of koi herpesvirus. Lastly, a peculiar phenomenon in male anglerfish has been explored, in which some individuals parasitically fuse with females, offering a unique window into the complex and often surprising world of biology.

Today's signal:
• Ancient Colombians built huge water system without centralized rule, archaeologists say (phys.org)
• Magnitude 7.4 quake rocks western Colombia, killing at least 111 people (phys.org)
• Oak leaves harbor distinct microbial worlds on their opposite surfaces (phys.org)
• When it comes to predicting people's preferences, it pays to consider 'the power of three' (phys.org)
• Common carp relatives blunt koi herpesvirus infections, offering clues to outbreak control (phys.org)
• Why some male anglerfish parasitically fuse with females (phys.org)