Plants

Grapefruit and grapefruit juice can adversely interact with certain medications.

Why Does Grapefruit Mess With Your Medicine?

The juicy fruit can cause negative side effects with a number of prescription and over-the-counter medicines

Ice cores from a lake in Norway. Image from Science/AAAS

Trees Weathered the Ice Age

Pine and spruce trees managed to survive in certain spots in Scandinavia, according to DNA analyses

The Svalbard Global Seed Vault

Svalbard Global Seed Vault Turns Four

Four years ago this week, researchers opened the "Doomsday Vault" to store frozen seeds in case of disaster

Wildlife corridors allow animals to safely cross urban areas.

Do Wildlife Corridors Really Work?

A new crowd-sourced project aims to identify and evaluate pathways that connect bits of wildlife habitat

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President Obama to Speak At Groundbreaking for African American History and Culture Museum

The groundbreaking ceremony for the Smithsonian's newest museum, scheduled to open in 2015, will feature Obama, Laura Bush and others

How much is the Hope Diamond worth? Ask Smithsonian.

How Much the Hope Diamond is Worth and Other Questions From Our Readers

From American art, history and culture, air and space technology, Asian art and any of the sciences from astronomy to zoology, we'll find an answer

2011 Grand Champion orchid: Cycnodes Taiwan Gold.

Objects Of Desire

Chronicling passions that change the world, for good and ill

John Kress, a Smithsonian botanist, suggests Dominica's Morne Trois Pitons National Park for an evolution vacation.

A Smithsonian Botanist Suggests an Evotourism Site

We turned to John Kress, an expert on how plants and birds co-evolved over time, for his pick for an evolution vacation

If spicy fruits are helpful to a chili plant, why aren't all chili peppers hot?

Why Not All Chili Peppers Are Hot

Being spicy helps a chili plant protect its fruit from fungal rot, but it has a downside in dry conditions

Mistletoes evolved the ability to grow not on the roots of trees, but instead on their branches.

Mistletoe: The Evolution of a Christmas Tradition

Why does this parasitic plant remind us of romance?

Aspen trees in Colorado

What Was Killing the Aspens?

Scientists determine it was lack of water, not food, that was responsible for sudden aspen decline

Hawkmoths prefer columbines with long, slender spurs.

The Columbines and Their Pollinators: An Evolutionary Tale

New research provides insight into an evolutionary concept introduced by Charles Darwin

Internal parts of a wildflower, magnified 100x, by Arik Shapira of Hod HaSharon, Israel

Wildflower, Magnified

Imagery from the Nikon Small World Photomicrography Competition ranges from the fantastical to the freaky

Prize pumpkins have tripled in size in the past three decades. Tim Parks, of the Ohio Valley growers club, harvests his 2010 contender.

The Great Pumpkin

Competitive vegetable growers are closing in on an elusive goal—the one ton squash

Most orchid bees, like this Euglossa paisa, have metallic coloration.

The Evolution of the Orchid and the Orchid Bee

Which came first--the plant or its pollinator?

Sweet sorghum may be grown for biofuel

How To Choose What To Plant For Biofuel

Some species proposed for bioenergy have the potential to become invasive

Kogod Courtyard is a 28,000-square-foot space with seating, free Wi-Fi and a Courtyard Café.

The List: Five Study Nooks in and Around the Smithsonian Museums

Calling all students, finding it hard to concentrate on your studies, we recommend five cool places to hit the books

Ancient cultures used an array of ingredients to make their alcoholic beverages, including emmer wheat, wild yeast, chamomile, thyme and oregano.

The Beer Archaeologist

By analyzing ancient pottery, Patrick McGovern is resurrecting the libations that fueled civilization

Before there were fruit patents, there were pictures. Shown here is The Red Astrachan apple.

How to Trademark a Fruit

To protect the fruits of their labor and thwart "plant thieves," early American growers enlisted artists

The Vine With Its Own Bat Signal

Specially shaped leaves lure the flying mammals. The bats get a meal, and the flowers get pollinated

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