Artificial rope bridges help stop rare primates jumping to extinction

A landslide created a perilously wide gap in the forest canopy on China’s Hainan Island, so researchers made rope bridges to help the endangered Hainan gibbons get across Source: https://www.newscientist.com/article/2257483-artificial-rope-bridges-help-stop-rare-primates-jumping-to-extinction/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

These ancient crocodiles walked on 2 legs like dinosaurs

Researchers suggest 110–120 million year old fossil footprints were made by ancient crocodiles that walked on 2 hind legs about the same length as adult human legs. Source: https://earthsky.org/earth/ancient-crocodiles-walked-on-2-legs-fossil-footprints…

Why Some Rope Knots Hold Better Than Others

Iwastheone shares a report from SciTechDaily: MIT mathematicians and engineers have developed a mathematical model that predicts how stable a knot is, based on several key properties, including the number of crossings involved and the direction in which the rope segments twist as the knot is pulled tight. “These subtle differences between knots critically determine whether a knot is strong or…