Not only is evolution happening right now everywhere around us, but adaptive changes can occur in a population with remarkable speed. This speed is essential if you’re a desert mouse living in an environment where a volcanic eruption can reverse selective pressure in nearly an instant. The film features Dr. Michael Nachman, whose work in the field and in the lab has quantified the selective pressure of predators and identified the genes involved in adaptation. In a complete story, from ecosystem to molecules, pocket mice show us how random changes in the genome can take many paths to the same adaptation—a colored coat that hides them from predators.
Experts usually recommend setting your bedroom thermostat between 65° and 75°F—a good guideline, but pay attention to how you actually feel under the covers. Slipping between cool sheets helps trigger a drop in your body temperature. That shift signals the body to produce melatonin, which induces sleep. That's why it's also a good idea to take a warm bath or hot shower before going to bed: Both temporarily raise your body temperature, after which it gradually lowers in the cooler air, cueing your body to feel sleepy. But for optimal rest, once you've settled in to bed, you shouldn't feel cold or hot—but just right.
“[F]rom a geopolitical perspective, increased LNG exports from the . and its allies would shift rents away from traditional, autocratic suppliers, including Russia, that have used the proceeds to finance policies at odds with . national security interests. . supply also promotes price competition and stability in global oil and gas markets. Price stability benefits . economic growth, and also better ensures that . adversaries that are major oil and gas exporters are less able to enjoy higher export revenues stemming from major global supply disruptions.”