Science

Human blood was used in an attempt to revive exsanguinated dogs. Image Credit: National Library of Medicine In 1816, a young doctor from Barbados carried out blood transfusion experiments that challenged a dangerous medical assumption and helped point the field towards a safer future. ‘John Henry Leacock’ used dogs and cats to investigate whether blood…

A tomato plant carries thousands of genes that stay largely quiet under normal growing conditions. Send that plant into orbit, however, and a striking number of them switch on or off within weeks. New research examining ‘Red Robin’ tomatoes grown aboard the International Space Station has found that once gravity is taken out of the…

PC: Natural History Museum of Utah A fungus can turn an infected ant into what scientists describe as a real-life ‘zombie ’, taking over its behaviour in a way that helps the parasite reproduce. The phenomenon is linked to Ophiocordyceps unilateralis, a fungus that infects several ant species. After infection, the ant may continue behaving…

Scientists have found that Mars is not the geologically uniform ball of rock it might appear from orbit. New analysis of nearly two decades of spacecraft tracking data shows that the mantle beneath the planet’s southern highlands runs between 200°C and 400°C hotter than the mantle beneath its northern lowlands, a temperature gap wide enough…

The waters off New York’s Hamptons, once immortalised as shark-infested territory in Jaws, are revealing a very different story. Researchers have confirmed a summer nursery for young great white sharks in the New York Bight, with studies showing juvenile whites repeatedly using the region’s coastal waters during their early years. NOAA lists Long Island among…

Glen Canyon Dam (Image Credit: Canva) For eight days in 1996, the Colorado River through the Grand Canyon experienced something unusual: a deliberately created flood. Scientists working with the U.S. Geological Survey (USGS) and other agencies used Glen Canyon Dam to release water at rates reaching 45,000 cubic feet per second, creating a massive controlled…

Researchers tested saliva and dander from the gene-edited dogs and found no detectable Can f 1 protein. The resulting 25 reconstructed embryos were implanted into a surrogate beagle, which eventually gave birth to Alfie and Bailey. Dogs are often called humans’ best friend, but for people with dog allergies, living with a canine companion can…

Quote of the day by Stephen Hawking Few questions have occupied the human mind for quite as long as why the universe exists, and whether human life actually has any real purpose. For centuries, people have approached these questions through religion, philosophy and science, often arriving at genuinely very different conclusions. Stephen Hawking, one of…

In 2003, Nasa researchers reported that freshwater snails carried into orbit aboard the Space Shuttle had mated and reproduced during their mission, allowing their gravity-sensing organs to develop entirely under microgravity. According to the study published in PubMed, tittled ‘Otoliths developed in microgravity‘ formed part of the results of the STS-90 Neurolab Spacelab mission, a…

In 2011, conservation teams set out on one of the biggest rat eradications ever on a tropical atoll, targeting an estimated 30,000 invasive rodents on Palmyra Atoll in the central Pacific. The goal was not just to remove a pest, but to restore an entire ecosystem that had been suppressed for more than a century….

In 2005, five thick-toed geckos left Earth aboard the unmanned Russian spacecraft Foton-M2, embarking on a 16-day orbital flight with no access to food or water. The mission, a joint undertaking between Nasa and the Russian Academy of Sciences, was designed to test whether a reptile species could serve as a viable model for studying…

In January 1960, Nasa launched the rhesus monkey Miss Sam aboard a Little Joe rocket from Wallops Island, Virginia, to test the launch escape system built for Project Mercury. The flight was designed to confirm that the escape tower could pull the capsule clear of its booster during an abort, a safeguard critical to any…