• Animals - 71 bks.
• Archaeology - 3 bks.
• Biographies - 1 bks.
• Cutting Edge - 22 bks.
• Earth Science - 34 bks.

• Exploring your World - 34 bks.
• Health - 40 bks.
• Life Science - 19 bks.
• Math - 4 bks.
• Other - 61 bks.

• Space - 42 bks.
• Technology - 25 bks.
• World History - 1 bks.

Can it halt global warming? Stop a killer asteroid? Alleviate world hunger, thirst, cancer? A look at the problems facing our world, and the science and scientists who might solve …

The various fossil species of humans have tongue-twisting names like Australopithecus Africanus. But when did early humans gain language themselves? With more than 20 species and s …

Features include: Click and the Kids;How We Use Fire; What Is Fire?; Here Come the Fire Trucks!; Fighting Fires- Without Fire Trucks; Yo Wants to Know; Firefighter Tom's Gear; Fire …

Features include: Click and the Kids; Dig It; Sand, Silt, and Clay; Getting Dirty; Yo Wants to Know; Dig Hole, Soft Mole; Down in the Dirt;

Why is blue, blue? Why does the color red make us hungry? The physics, chemistry, technology, and psychology of color.

Features include: Dollars and Cents, It's a Deal, Spend or Save?, Minty Fresh Coins, A Bill's Life, Very Interest-ing

From bartering to banking, everyone uses something for exchange. As cattle and cowrie shells gave way to precious metals, which in turn were substituted by promissory notes, the co …

Features include: Scoops, Nestor's Dock, Ask Jimmy and the Bug, Marvin and Friends, Way Back to School, Why Practice, Lessons for Little Ones, Which Type of Learner Are You?, Bird …

Whether you're shooting the luge at the Winter Olympics or "catching big air" like the dirt biker on our cover, it takes a lot to be the best in an extreme sport. How does science …

Features include: Click and the Kids;Sheep Dogs on the Job; Herding with Hannah; What Do Farm Animals Say?;Yo Wants to Know; Got Milk?;Whose Eggs?; Beatrice's Goat;Heads and Tails. …

Features include: Notes from the Underground, Sniffing for Whales, Floating Gold, Dragon Spittle, Whale's Pearls, The Sweet Smell of Progress, Get Thee to a Tub! A Brief History of …

Features include: Click and the Kids;Whose Feet?;Move!;If You Were...; Yo Wants to Know; Cling, Climb, Leap!;Audrey's Ducks.

How and why people have built things from the Wonders of the World to monster trucks.

Features include: How to Win the World Memory Championship, Gobekli Tepe: The World's First Templ?, Second Chance Zoo, Unforgettable

Features include: Summer, Winter, Spring, Fall...and Night?, Why Darkness Falls, That Spooky Night, At Home in the Dark, Moonlight, Glow in the Dark

How our brains compute language; how language evolved; how we learn it; language disorders; simulating language (talking robots); animal communication.

Do you like to play? Luckily, most of us do, whether we’re two or 20! In this issue we’ll explore the science of fun: how it contributes to our successful learning and development …

Features include: Click and the Kids, Nature Spy, Can You See Me?,Yo Wants to Know, What's the Difference, Look-Alikes, Name that Tree, look Left Look Right

Features include: Finding Tiktaalik, The Invisible Everyday World, Cracking the Desire Code, Gut Math.

Ever wonder why something that costs just 5.7 cents to make (that’s a one-dollar bill!) is worth so much? Money talks in this issue, revealing the history of money, from cows to co …

Take a giant step into this monstrous issue and select from features like Battles of the Gods: A Muse Mini Myth; When Giants Walked the Earth;, Insect Stare-Down; and Toad Overload …

Features include: Alien Invasion; The Arrival; Super-Drought in the Southwest; Flight of the Flora.

Features include: Living Machines; DIY Bio; Empty Street, Blank Canvas; From Fossils to Flesh; Not Measuring Up.

The earliest known mummifications – discovered in Chile, no less – and the poop on poop are just two of the fascinating features in this fertile issue. Shop with CalTech students f …

Clutch piracy in amphibians, frigate birds, pirates of the air; celestial navigation, computer spammers, pirates, and hackers; seafloor mapping, art piracy and science detection, s …

All animals do it, and some even use it "- to build homes, hide from enemies, attract mates, send messages, and cool off. Some even eat it. Forensic applications, Turd Trivia, Pand …

A "green" issue on challenges we face and ingenious solutions to solving energy problems.

Features Include: Learning to Speak, English as She is Spoke, A Lost Language, The Poetry Machine, A Made-Up Language, Many Languages

Wizards of detection, professional lie-catchers, what makes a smile true, an advanced face-reading test, and many additional facts on the matter comprise Deception Detection in thi …

Features include: Kristin Laidre: Arctic Adventurer, You Study What? Strange But True Stories of Scientists in Action, Cool Tools, The Art of Science.

Every curious kid eventually looks up into the night sky and asks what it’s all about. Let Jack Horkheimer, host of PBS’s Star Gazer, give them the big picture in this wonderful fa …

features include: Traveling with the Crowd; What Can a Computer Learn From a Wildebeest?; A Noodle of Names; All Together Now; The Tribe of Ask; Prairie Dogs: Talk of the Town; How …

Humans have a love/hate relationship with sharks. They are fascinating on a movie screen, but terrifying in the surf. This issue will look at their importance to the ocean ecosyste …

Neural roots of identity, animals and identity, identity theft, technology and identity.

Carbon dioxide has turned Earth into a greenhouse and is acidifying our oceans. But without carbon-based molecules, life as we know it would not be. This issue will look at carbon …

Tornadoes, galaxies, earthquakes, ocean vortices, knot math, DNA, dust devils.

April showers bring...well, water and so does our April issue of FACES. Though it's seems so plentiful in many places that we scarcely notice it, many people around the world don't …

Features include: Perfect Partners, Blabbermouth, At Your Service!, Where's the Honey, Honey?, Garden Friends, The Whales of Twofold Bay

Will there ever be hovering cars that lift us off to school and work? Or are we permanently grounded as energy issues dominate transportation? How close are we to hydrogen-powered …