Podcast Episodes
Back to SearchPolynesians and Native South Americans Made 12th-Century Contact
Scientists have found snippets of Native South American DNA in the genomes of present-day Polynesians, and they trace the contact to the year 1150. C…
5 years, 6 months ago
Animals Appreciate Recent Traffic Lull
Researchers saw a third fewer vehicle collisions with deer, elk, moose and other large mammals in the four weeks following COVID-19 shutdowns in thre…
5 years, 6 months ago
Bat Says Hi as It Hunts
Velvety free-tailed bats produce sounds that help them locate insect prey but simultaneously identify them to their companions.
5 years, 6 months ago
Forests Getting Younger and Shorter
Old, big trees are dying faster than in the past, leaving younger, less biodiverse forests that store less carbon worldwide.
5 years, 6 months ago
Young Great White Sharks Eat off the Floor
The stomach contents of young great white sharks show that they spend a lot of time patrolling the seafloor for meals.
5 years, 6 months ago
Tweets Reveal Politics of COVID-19
Political scientists analyzed congressional tweets and observed how Republicans and Democrats responded differently to the virus. Christopher Intagli…
5 years, 6 months ago
Nature's Goods and Services Get Priced
The gross ecosystem product, or GEP, tries to take into account the contribution of nature to the economy.
5 years, 6 months ago
Animal Migrations Track Climate Change
Many species are known to have changed their migration routes in response to the changing climate. They now include mule deer and Bewick’s swans.
5 years, 6 months ago
Science Briefs from around the World
Here are some brief reports about science and technology from around the planet, including one about a 70-million-year-old mollusk fossil that reveal…
5 years, 6 months ago
Stiffer Roads Could Drive Down Carbon Emissions
By hardening the nation’s streets and highways, trucks would use less fuel and spare the planet carbon emissions. Christopher Intagliata reports.
5 years, 6 months ago