World

In the remote savanna-woodlands of Guinea-Bissau, scientists are investigating a strange chimpanzee behaviour that has persisted for more than a decade. Wild western chimpanzees repeatedly collect rocks and hurl them at the same trees, creating piles of stones and leaving visible scars on the trunks. Known as accumulative stone throwing, the behaviour is particularly associated…

US military leaders reportedly warned Iran that operation has become “too much for too long”, citing strain on troops and readiness. Several senior US military leaders reportedly warned Defense Secretary Pete Hegseth that prolonging large-scale operations against Iran was unsustainable and could weaken the military’s ability to respond to threats elsewhere, including against the US…

What’s the one thing you would carry to a remote island with you? If honesty is the way forward, most would say their phone. While there was a time someone would have said an answer like a weapon or maybe their loved one, now, it is truly a mobile phone that lives rent-free with a…

In a remote corner of Southcentral Alaska, state biologists carried out a dramatic restoration: they treated an entire lake with rotenone, a plant-derived piscicide, to wipe out an invasive population of northern pike. After the treatment, post-surveys confirmed the pike were gone. The next step was rebuilding what had been lost. In June 2013, the…

Image: Conrad Space Center For divers beneath the surface, communication can become surprisingly difficult. Radio signals that work reliably on land do not travel effectively through water, leaving divers dependent on hand signals, pre-arranged plans or specialised equipment when they need to communicate. Five Chinese students, Hao Ting Lyu, Qing Ying Cao, Bai Xuan Ye,…

Representative Image of astronauts converting Martian regolith into a growing medium for crops inside a Mars habitat (AI-generated image) Three Texas students have designed a system they believe could help future astronauts grow food on Mars using material already sitting on the planet’s surface. Varshini Gandreddy, Dhiti Koyya and Raaga Bukkaraju developed the project, called…