Featured in ice age

Why big animals can’t take a little rain
Why Big Animals Can’t Take a Little Rain
Life in Los Angeles was brutal for saber-toothed cats
Is Global Warming Creating Penguin Winners And Losers?
Human CO2 Emissions Could Avert the Next Ice Age, Study Says
What Killed the Mammoths? Alien Nanodiamonds May Hold the Answer
PopSci’s Guide to Summer Sci-Tech Movies 2009
What Did Early Americans Eat?
The Human Cause of Animal Extinction