Cassowary Calls
A bird called the cassowary emits calls lower than the level of human hearing.
Road Rubber
Where does tire rubber go when the tire wears out? (Pieces get airborne or washed into streams.)
Fish Sounds
Testing underwater sounds on fish to lure them away from hydroelectric dams
Bears and Wolves
Thinning arctic ice threatens polar bear habitat, and the reintroduction of wolves is improving the …
Titan’s Surface
Radar telescope data shows the presence of liquid lakes on the surface of Saturn's largest moon.
Size and Gender
Animals that change sex usually do it at 72 percent of their maximum size.
White Hole
A new model showing that the Big Bang occurred inside the opposite of a black hole
Genes Roundup
Delaying breast cancer with exercise and weight control, and genes associated with …
Missing Stars
Why don't pictures of space show any stars? (Shutter speed not long enough.)