Jan 7th, 2005 · As the people of Southeast Asia struggle to recover from the Asian tsunami, we take a look at the environmental and ecological impacts of all that seawater. Plus, anecdotal reports suggest that most large mammals in the area escaped harm. We talk with a scientist about whether animals can sense an oncoming tsunami.
Dec 27th, 2004 · Working backward from the genes of living animals, biologists have reconstructed part of the DNA sequence of the mammal from which humans descended. The earliest mammal on the planet was a small rodent-like creature that existed some 70 million years ago. NPR's Joe Palca reports.
Nov 25th, 2004 · About half of the large mammals in North America went extinct about 12,000 years ago. Scientists have long debated whether that was caused by hunting or climate change. A new study of ancient bison bones sheds light on the mystery. NPR's Richard Harris reports.
Nov 20th, 2004 · A body language experiment at Harvard reflects a shift in thinking among neuroscientists about how humans, primates and other mammals respond to emotion in others, from fear to joy. NPR's Richard Knox reports.