The word hibernation is often used in reference to deep sleep, but what is it really? What kinds of creatures hibernate? How does this demonstrate the...
Should we believe that there were multiple Ice Ages? How does an Ice Age happen? And what evidence can we find for a single Ice Age? Watch Episode 20...
How did a 1980 volcanic eruption change our understanding of geology? What impact did this event have on the age assignments of sediments? Join us for...