Multiple ways to evolve tiny knee bone could have helped humans walk upright

Multiple ways to evolve tiny knee bone could have helped humans walk upright

Credit: Pixabay/CC0 Public Domain The evolution of bones in primates’ knees could have implications for how humans evolved to walk upright, a new study has found. Researchers from King’s College London analyzed the presence of the lateral fabella, a bone in the knee the size of a sesame seed, in 93 different species of primates. … Read more

Pollution of the potent warming gas methane soars and people are mostly to blame

Pollution of the potent warming gas methane soars and people are mostly to blame

A wastepicker walks past on a pile of garbage at a landfill in Depok on the outskirts of Jakarta, Indonesia, May 10, 2024. Credit: AP Photo/Tatan Syuflana, File The amount and proportion of the powerful heat-trapping gas methane that humans spew into the atmosphere is rising, helping to turbocharge climate change, a new study finds. … Read more

Summer storms found to be stronger and more frequent over urban areas

Summer storms found to be stronger and more frequent over urban areas

An example of a track’s trajectory over Milan and how upwind and downwind distances are defined. Credit: Earth’s Future (2024). DOI: 10.1029/2024EF004505 Summer storms are generally more frequent, intense and concentrated over cities than over rural areas, according to new, detailed observations of eight cities and their surroundings. The results could change how city planners … Read more

Diagnostic test that combines two technologies with machine learning could lead to new paradigm for at-home testing

Diagnostic test that combines two technologies with machine learning could lead to new paradigm for at-home testing

Credit: ACS Nano (2024). DOI: 10.1021/acsnano.4c02897 A new diagnostic test system jointly developed at the University of Chicago Pritzker School of Molecular Engineering (PME) and UCLA Samueli School of Engineering fuses a powerful, sensitive transistor with a cheap, paper-based diagnostic test. When combined with machine learning, the system becomes a new kind of biosensor that … Read more

New Zealand’s kākāpō developed different feather colors to evade predatory birds, genome sequencing shows

New Zealand’s kākāpō developed different feather colors to evade predatory birds, genome sequencing shows

The kākāpō individual Hoki as an example of the green feather color polymorphism. Credit: Lydia Uddstrom, New Zealand Department of Conservation (CC-BY 4.0, creativecommons.org/licenses/by/4.0/) Aotearoa New Zealand’s flightless parrot, the kākāpō, evolved two different color types to potentially help them avoid detection by a now-extinct apex predator, Lara Urban at Helmholtz AI, Germany and colleagues … Read more

New stormwater infrastructure is needed for Canadian cities to handle increased urban flooding

New stormwater infrastructure is needed for Canadian cities to handle increased urban flooding

Credit: Unsplash/CC0 Public Domain Urban flooding is increasingly concerning in Canada, where water drainage systems are at risk of being overwhelmed. Natural watersheds have been greatly altered by construction disturbing the natural ways that water flows from rainfall, across the land and into water bodies. The result is that drainage infrastructure must cope with increased … Read more

New dense sub-Saturn exoplanet discovered

New dense sub-Saturn exoplanet discovered

Detrended TESS light curve (LC) of TOI-6651 from sector 17 (1800-second cadence) and 57 (200-second cadence) shown in green and blue points, respectively. The upper panel displays the full TESS LC plotted against time, while the lower panel presents the phase-folded LC with pink dots representing 25-minute binned data points. The black solid line in … Read more

Oil tanker ablaze off Yemen threatens environmental disaster

Oil tanker ablaze off Yemen threatens environmental disaster

The Greek-flagged Sounion was struck on August 21, 2024 by Yemen’s Huthi rebels. An abandoned tanker carrying more than one million barrels of crude oil could contaminate vast areas of the Red Sea in a severe, long-term environmental disaster if it breaks up or explodes, experts warn. The Greek-flagged Sounion, struck on August 21 by … Read more

SpaceX Polaris Dawn mission aiming for history with first private spacewalk

SpaceX Polaris Dawn mission aiming for history with first private spacewalk

A SpaceX Falcon 9 rocket with the Crew Dragon Resilience capsule sits on Launch Complex 39A at Kennedy Space Center ahead of the Polaris Dawn Mission in Cape Canaveral, Florida. The SpaceX Polaris Dawn mission, a daring multiday orbital expedition that will feature the first-ever spacewalk by private citizens, is targeting liftoff early Tuesday, though … Read more

Methane emissions are rising faster than ever, research shows

Methane emissions are rising faster than ever, research shows

Credit: CC0 Public Domain The world has not hit the brakes on methane emissions, a powerful driver of climate change. More than 150 nations have pledged to slash by 30% this decade under a global methane pledge, but new research shows global methane emissions over the past five years have risen faster than ever. The … Read more