Scientists at work: We use environmental DNA to monitor how human activities affect life in rivers and streams
Rivers are among among the most embattled ecosystems on Earth. Researchers are testing a new, inexpensive way to study river health by using eDNA to count the species that rivers harbor.
Emily S. Bernhardt, Professor of Biology, Duke University •
conversation
Sept. 17, 2021 • ~9 min
Sept. 17, 2021 • ~9 min
Zinc-infused proteins are the secret that allows scorpions, spiders and ants to puncture tough skin
Many small animals make their teeth and claws from a smooth blend of proteins and heavy elements. These materials can form very sharp tools that make it possible to cut tough substances using tiny muscles.
Robert Schofield, Research Professor in Physics, University of Oregon •
conversation
Sept. 1, 2021 • ~5 min
Sept. 1, 2021 • ~5 min
The invasive emerald ash borer has destroyed millions of trees – scientists aim to control it with tiny parasitic wasps
Biological control strategies curb pests using other species that attack the invader. A biologist explains why it can take more than a decade to develop an effective biological control program.
Kristine Grayson, Associate Professor of Biology, University of Richmond •
conversation
Aug. 27, 2021 • ~8 min
Aug. 27, 2021 • ~8 min
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