81. Longest Mammal Migration Tracked
Humpback whales migrate farther than any other mammal...

82. Fossils of a 300-Million-Year-Old Forest Found
“The woods are lovely, dark and deep,” Robert Frost wrote...

83. Why Loneliness Is Bad for You
Feeling lonely can make you sick.

84. Chimps Show Altruistic Streak
For years, lacking evidence to the contrary, most scientists had assumed that altruism is unique to humans...

85. Semi-Identical Twins Discovered
Twins are normally either identical—the result of a single sperm fertilizing a single egg, which then splits and duplicates itself—or fraternal, developing from two separate eggs fertilized by two separate sperm...

86. World’s First Trees Unearthed
When staffers from the New York State Museum dug out two massive fossils from a Catskills quarry, they solved a 130-year-old mystery.

87. Magnetic Brains Give Birds An Inner Compass

Birds have good vision, but their brains turn out to be even more eagle-eyed.

88. Did Mice Domesticate The House Cat
The house cat—like domestic grains and farm animals—originated in the Fertile Crescent, probably about ten thousand years ago...

89. Food Additives’ Effect on Children
Can food additives affect children’s behavior?

90. Angkor Was a Vast City
The temples of Angkor are architectural marvels and international tourist attractions.

91. Disgraced Korean Cloner Accidentally Created Novel Stem Cells
Korean researcher Woo Suk Hwang claimed in 2004 to have created a human embryonic stem cell line...

92. First Fossil Of A Leaf Insect Found
To escape prying predators, fragile fauna often become masters of the art of disguise.

93. Andean Crops Cultivated Almost 10,000 Years Ago
Archaeologists have long thought that people in the Old World were planting, watering, weeding, and harvesting for a good 5,000 years before anyone in the New World did such things.

94. Saturn Seen In New Light<
Delivering more than just pretty pictures, the Cassini spacecraft returned an impressive collection of photographic firsts ...

95. Secrets of Egg Formation Glimpsed
Unlike other cells in mammals, eggs lack centrosomes—crucial stabilizing structures that organize strandlike proteins...

96. Function of Appendix Explained
In September, a team of surgeons and immunologists at Duke University proposed a reason for the appendix...

97. Hot-Tailed Squirrels vs. Rattlesnakes
California ground squirrels have it rough...

98. Twin Probes Watch Sun’s Fury in 3-D
Astronomers got a new perspective on the sun in April...

99. Who Shrunk the Dogs Down
Chihuahuas, Boston terriers, and Pomeranians have this much in common...

100. Tiny Origin of The World’s Largest Flower
The world’s biggest flower—which weighs 15 pounds and smells of rotting flesh...