Risk: Where do real dangers lie?
We have always had to assess the chances that bad things will happen; now, new tools give us hard numbers but also raise new questions
The Object at Hand
The story behind the Smithsonian’s display tiger leads back into tiger history, man-eating and otherwise, and back to the fact that tigers are endangered
That ‘Little Armored Thing’ Doesn’t Get by on Looks Alone
It appears to be made out of spare parts, but the only mammal equipped with a carapace is actually a model of ecological efficiency
Elephant Seals, the Champion Divers of the Deep
These ponderous pinnipeds continually set new records for diving to crushing depths; researchers are hard at work to discover just how they do it
Chimney Sweeps Are Plunging Into Their Work Again
With more of us using fireplaces and modern high-efficiency wood stoves, the ancient profession is getting a new lease on soot
Phenomena, Comment & Notes
Iceberg armadas and flickering climates: how one good idea led to more, and we appreciated anew the world’s complexity
The Great Martian Fossil Hunt
If bacterial life did arise on an Earth-like early Mars, we should be able to find its fossil remains preserved in those red rocks
Seeking gifts from the sea, Sanibel-style
Seeking gifts from the sea, Sanibel-style
Around the Mall & Beyond
Plant and the butterflies will come: This summer the Smithsonian’s new garden welcomes its winged visitors
My Psychiatrist Tells Me I Have ‘Sci-Fitis’…
On an ordinary April day the weirdness came to town
My Dog Has Fleas, Also My Cat, My Bird, My…
These tiny prehistoric parasites have evolved a bold array of weapons, the better to torture their hosts
Flutter by and Be Counted!
At the Fourth of July Butterfly Count, devotees census swallowtails, wood-nymphs and all their colorful kin
Science Defined by the Hands of a Book Artist
You can’t always tell a book by its cover; in fact, it may not even have a cover. These artists’ books convey their message in unexpected ways
The Object at Hand
How a snake, attended by alarums and excursions, made it from an Asian jungle to the National Zoo and so to its present berth in a Smithsonian museum
For Our Nuclear Wastes, There’s Gridlock on the Way to the Dump
It’s not an emergency yet, but we have tons of the stuff, some of it hot, some not so hot, and nobody can agree on where to bury it
On the Trail of the Stealth Birds of Our Wetlands
With its cunning camouflage and some mighty morphing, a bittern can be one tough bird to find and a tough customer to boot
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