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Science

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Sloth Bears: They Eat Ants, but Take on Tigers

Still used as “dancing bears,” they can hold their own with the big cats but not with human expansion

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Making the Chips that Run the World

Making the Chips that Run the World A piece of cake: put 9½ million transistors in a space the size of your thumbnail and allow zero contamination

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The Return of the Elk

Monarchs of the mountain West, they once ranged all the way to the Eastern Seaboard. Now they are coming home

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When the Earth Froze

The rocks tell us that at least twice, the earth has frozen over from the poles to the equator

Animal Old Folks

For the National Zoo’s esteemed senior citizens, only the very best in geriatric medical care will do

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The “Sea Canary” Sings the Blues

The beluga whales of Canada’s St. Lawrence River have endured a lot over the years, but they’re still around, and still controversial

Border Collie

“A Good Dog Knows What to Do”

In competition, workaholic Border collies fetch, pen and shed to prove they have the right stuff

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NASA Goes Ballistic

The space agency crashed a satellite on the moon in a search for water. It wants to “shoot” a comet.

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Will the Kitchen Please Shut Up!

Talking oven mitts, anyone? At the Counter Intelligence Project, research wizards are creating the culinary gizmos of tomorrow

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Something Just Bit You?

Was it a scorpion? A spider? A snake? The toxin experts at APDIC can tell you what to do

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Saving Birds with a Ring and a Prayer

In North America, more than 60 million birds have been banded to help us learn how they live and travel

Dwarf mongoose at the National Zoo

Creature Keepers

Conservation and research remain key elements in the National Zoo’s ever-expanding programs

A Census of the Wild

A government report takes a look at what we have left and where we are heading

Javelina

Do Not Take the Javelina Lightly

Oh yes, it’s a touchy-feely creature all right, but the collared peccary, or javelina, has very big teeth and it knows how to use them

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Relax, It’s Only a Piranha

Never mind its savage reputation. The piranha is a pussycat— most of the time

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