How do ants crawl on walls? A biologist explains their sticky, spiky, gravity-defying grip
Ant feet are equipped with an array of tools – from retractable sticky pads to claws to special spines and hairs – enabling them to defy gravity and grip virtually any surface.
Deby Cassill, Associate Professor of Integrative Biology, University of South Florida •
conversation
Sept. 12, 2022 • ~6 min
Sept. 12, 2022 • ~6 min
Deaths and injuries in road crashes are a 'silent epidemic on wheels'
Traffic crashes kill and injure millions worldwide every year and are a major drain on economic development. Improving road safety would produce huge payoffs, especially in lower-income countries.
John Rennie Short, Professor, School of Public Policy, University of Maryland, Baltimore County •
conversation
May 31, 2022 • ~10 min
May 31, 2022 • ~10 min
12 best ways to get cars out of cities – ranked by new research
A new study finds congestion charging and creating car-free streets and separated bike lanes have been most effective at reducing car use in European cities.
Kimberly Nicholas, Associate Professor of Sustainability Science, Lund University •
conversation
April 14, 2022 • ~27 min
April 14, 2022 • ~27 min
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