Aardvarks are not the most attractive animals. They have rabbitlike ears, a kangaroo tail and a nose like a pig. But they are mammals, and that means they feed their babies milk. At the Cincinnati Zoo in Ohio, an aardvark mother is contributing to the largest collection of exotic animal milk in the world. As Faiza Elmasry tells us, the milk is used to learn about mammal nutrition and help create milk alternatives for animal babies that need to be hand-raised. VOA's Faith Lapidus narrates.
Electric-powered ground transport is slowly but steadily taking over from one based on fossil fuels. Electric cars, buses, bikes, scooters, even electric skateboards are growing more common on streets around the world. The next step is electric aviation, and airplane manufacturers are eyeing this potentially very lucrative market. VOA's George Putic reports.
Advanced sensor technology can monitor a wide range of applications, from water quality to air pollution to energy use. Faith Lapidus tells us how a team of scientists at the University of Washington, with support from the National Science Foundation, is turning the sensors in smartphones into home health care tools.