The Virus Hunters: Finding animal diseases before they infect humans
More than 60 percent human viruses originally come from animals.
For the past decade, these researchers around the globe have been working to identify risky viruses before they infect humans.
The team found a new Ebola virus in bats in Sierra Leone, and has worked with various communities to reduce exposure.
Invasive aquatic plants threaten Lake Tahoe’s clear waters
The plants look like seaweed, rising from the shallow areas of Lake Tahoe to the surface. But in this fresh-water, high-mountain lake with a $5-billion recreation economy, invasive plants threaten both the environment and an international tourist destination.
Dee the desert tortoise gets a new home
A tortoise adoption group trains people to become custodians for long-lived but endangered desert tortoises in Nevada.