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.