File Title
1 Reference: Facts About Nitrogen
2 Reference: Causes of Global Warming
3 Reference: Garden Spiders: Weavers of Delicate Webs
4 Use of Cholesterol-Lowering Meds on the Rise
5 N/A
6 Using Lights to Illuminate Biology
7 Seismic Waves Show Which Sport's Fans Rock Hardest
8 Bone Density Drop in Modern Humans Linked to Less Physical Activity
9 CES 2015: World's Largest Gadget & Tech Event Kicks Off January 6
10 Ancient Eye Cells Suggest Color Vision Is 300 Million Years Old
11 Best Fitness Apps for 2015
12 Ancient Glass Bracelet Decorated with Menorahs Found in Israel
13 Imagination and Reality Look Different in the Brain
14 Smartphone Use Reveals Brain's Plasticity
15 'Captain America' to 'Interstellar': The Science of 2014's Sci-Fi
16 Why Not Eat Canada Goose for Christmas? (Op-Ed)
17 Reference: Tarantula Facts
18 Reference: Brachiosaurus: Facts About the Giraffe-like Dinosaur
19 Our Hunt for the World's Deepest Fish (Op-Ed)
20 What Airlines Should be Doing to Stop Air Rage (Op-Ed)
21 Reference: What Is the Weak Force?
22 Gut Feeling? Probiotics May Ease Anxiety and Depression
23 Mystery of Ancient Chinese Civilization's Disappearance Explained
24 Belize's Famous 'Blue Hole' Reveals Clues to the Maya's Demise
25 Death Can't Stop Professor from Getting 'Last Word'
26 The Year in Food (Op-Ed)
27 Ancient Stone Tool a Clue to Early Human Migrations
28 Navy Helicopter Drone Completes First Round of Testing
29 Did Microbes Shape the Human Life Span?
30 Reference: Mono: Symptoms, Diagnosis and Treatment Options
31 Reference: Daddy Longlegs: Spiders & Other Critters
32 Reference: Wolf Spiders: Bites, Babies & Other Facts
33 Coolest Archaeological Discoveries of 2014
34 Tsunami Science: Advances Since the 2004 Indian Ocean Tragedy
35 Was Monkey Actually Trying to Revive Shocked Companion?
36 Laurent de Brunhoff Reveals Shocking Beginning of Beloved Babar Series
37 Krampus's Sidekick? Fanged "Vampire Deer" Explained
38 Watch a Green Comet Streak Across the Sky for Christmas
39 Four 2015 Energy Ideas 'Back to the Future' Got (Almost) Right
40 Stunning Time-Lapse Reveals Auroras and Earth From Space
41 Charles Dickens's Great-Great-Grandson: Author Was 'World's First Superstar'
42 Will Indonesia Be Ready for the Next Tsunami?
43 Audubon's Christmas Bird Count Turns 115: Why Does It Matter?
44 Stepping Out of the Lab to Help Millions of Trafficked Animals
45 How Long Can the U.S. Oil Boom Last?
46 As U.S. Fracking Bans Increase, So Do Lawsuits
47 How to Clean All Those Solar Panels? Get Robots to Do It
48 Former Coal Mining CEO Faces Prison Over West Virginia Safety Violations
49 Chevy Opts in to Fledgling Carbon Market Aimed at Saving U.S. Grasslands
50 Could Involuntary Simplicity Simply Be the Future?
51 Berkeley's Guilt Trip: Driving Hurts the Planet
52 India's Energy Moment: Ready for a Low-Carbon Future?
53 What's the Difference Between Rabbits and Hares?
54 Birds May Have Sensed Severe Storms Days in Advance
55 Peculiar Extinct Fish with Spines Named for National Geographic
56 Weird Animal Question of the Week: Oddest Eggs of the Animal Kingdom
57 Mystery Solved? How Butterflies Came to Look like Dead Leaves
58 Fish Smell like the Coral They Eat--Disguise Is New to Science
59 Weird Animal Question of the Week: What's the Most Toxic Snake?
60 Chilean Lake May be the Site of Mega-Eruption
61 Richard III DNA Suggests Infidelity
62 Did Alcohol Consumption Help Shape Human Evolution?
63 'Swamp Thing' Unearthed: an Ancient Carnivorous Plant
64 Oldest Art Ever Etched into Mollusk Shell
65 Is it Ripe Yet? A Laser Can Tell
66 Where Did the Pueblo Go? Blame Ancient Climate Change
67 Source of Volcanic Eruptions Closer to the Surface than Previously Thought
68 'Huge' Primate Fossils Hint at Earlier Evolution
69 Cancer is Not Exclusive to the Modern Age: Fossil Evidence
70 The Secrets of Parchment: Hints of Agriculture History
71 Snakes: The Evolution of their Venomous Bite
72 Fossil of Ancient Balloon-Shaped Animal Found
73 Viking Women Helped Men Colonize New Lands
74 Bipedal Quails Shed Light on Dinosaur Gait
75 Bird X-Ray Reveals 'Birth' of Dinosaur Tracks [VIDEO]
76 Amazing Mammalian Fossil Discovered in Madagascar
77 Oldest Horned Dinosaur Discovered in North America
78 Ancient Mollusk Discovered Under the Arctic
79 Volcanoes to Blame for Dinosaur Die-Offs?
80 Birdsong and Human Speech: Driven by the Same Genes
81 The Secret of Blue Jays: The Complexity of Color
82 Teeth to Beak: When Birds Lost Their Smile
83 Humans First Built Fire 350,000 Years Ago
84 Origin of Agriculture May be Key to Future Food Security
85 Our Mountains Won't Get Any Taller, and Here's Why
86 Scientists Name Earth's Most Abundant Mineral
87 New Layer of Earth Grows Beneath Icelandic Volcano
88 Ancient Dental Records Reveal the Main Dish on Easter Island
89 Horse Genetics: Unveiling the Cost of Domestication
90 US Navy's Underwater Drone Looks, Swims like a Tuna
91 Nature's Niceties: Gift Edition
92 Humans Did Not Entirely Hunt Giant Lemurs into Extinction
93 30,000 Diamonds Found in One Small Rock
94 Mysterious Egyptian Cemetery Holds a Million Mummies
95 Egyptian Ministry Claims 'Million Mummies' Study is False
96 Earth May Have Made its Own Oceans from Within
97 Ancient 'Abominable Snowman' Theory Debunked: New DNA Analysis
98 Smarty Plants: Intelligence and Learning in Garden Greenery [EXCLUSIVE]
99 Dinosaur Death Impact May Have Killed More Mammals than Thought
100 Taking Yellowstone's Hot Springs Back in Time
101 Human Bones Lighter, More Fragile with the Switch from Foraging to Farming
102 Fossilized Rods and Cones Suggest Ancient Fish Saw in Color
103 Oldest Stone Tool Sheds Light on Movements of Early Humans
104 Meet the Milky Way's New Neighbor, KKs3
105 Ancient Rock Reveals Signs of Water on Mars
106 Holiday Lights on the Sun: Stunning Solar Flare
107 New Exoplanet Discovery Marks Kepler Mission Reboot
108 Smartphone Use Means More Brain Power at Your Fingertips
109 Champagne Bubbles the Key to More Efficient Energy Production
110 The Sound of Tree Rings: Artist Plays Them like Records