I Wonder… A Young Naturalist Explores Nature

The natural world is filled with mysteries. Sometimes becoming a naturalist begins with two simple words: “I wonder…”

I wonder why fireflies flash.

I wonder where butterflies go when it rains.

I wonder why some birds leave for the winter.

I wonder what lives underneath the soil.

I wonder why mushrooms suddenly appear after a storm.

Children are natural question-askers. They notice things adults sometimes walk past, and they aren't afraid to ask why.

Those questions are more important than they may seem.

Every scientist, explorer, and naturalist has looked at something in the natural world and wondered about it. Questions lead us to observe more carefully, search for explanations, make discoveries, and eventually recognize connections we didn't know existed.

So let's explore some of those “I wonder…” questions together.

I Wonder…Why Do Fireflies Flash?

A summer evening becomes a little more magical when tiny lights begin blinking across a field or backyard.

But fireflies aren't flashing for us.

Fireflies are actually beetles, and the light they produce is called bioluminescence. A chemical reaction inside specialized organs allows them to create light with very little heat.

For many species, flashing is part of finding a mate. Different species can have distinctive patterns of flashes, almost like having their own light-based language.

And those adult fireflies are only one part of the story.

Fireflies spend much of their lives as larvae, often living in or near soil, leaf litter, and other moist habitats, where many prey on small invertebrates.

So if you want fireflies around your home, don't think only about the flying adults.

A naturalist asks another question:

What habitat do they need during the rest of their lives?

I Wonder…Where Do Butterflies Go When It Rains?

Imagine being a butterfly when a giant drop of water falls from the sky.

Butterflies generally seek shelter during heavy rain and strong winds. They may take refuge beneath leaves, within vegetation, among grasses, or in other protected locations.

Look closely at plants after a rain and you may discover insects tucked into places you normally overlook.

This raises another interesting question.

Where do butterflies go at night?

Many species settle into sheltered locations and remain relatively inactive until conditions become favorable again.

The butterfly you see flying through your garden represents only a small portion of its day.

Sometimes understanding an animal means investigating what it does when we aren't watching.

I Wonder…Why Do Birds Migrate?

Imagine traveling hundreds or even thousands of miles without a road map.

Many birds do it every year.

Migration allows birds to take advantage of seasonal resources, including food and suitable breeding habitat. Some species travel astonishing distances between breeding and wintering areas.

How do they know where to go?

Bird navigation is complex. Depending on the species, birds can use information from the sun, stars, Earth's magnetic field, landmarks, and other environmental cues.

Young birds of some species accomplish their first migration without an experienced adult showing them the entire route.

The next time you see a migrating bird, consider this:

It may be only temporarily visiting your neighborhood during an extraordinary journey between distant parts of the world.

Your backyard can be part of a migration route.

I Wonder…Why Do Leaves Have Holes?

A leaf filled with holes may look damaged.

A naturalist sees evidence.

Something may have eaten there.

Look closely.

Are the holes along the edge?

In the center?

Are there winding trails through the leaf?

Is part of the leaf folded or rolled?

Can you find a caterpillar, beetle, grasshopper, or other possible leaf-eater nearby?

Plants and insects have been interacting for millions of years. Many insects depend upon plants for food, and some species can eat only particular groups of plants.

Those holes aren't necessarily evidence that something has gone wrong.

They may be evidence that the plant is participating in a food web.

I Wonder…What Lives in the Soil?

Look beneath your feet.

Soil may seem quiet, but it contains an extraordinary community of life.

Worms, mites, springtails, insects, fungi, bacteria, and countless other organisms live within or interact with soil. Plant roots extend through it, and fungi form important relationships with many of those roots.

Some soil organisms help break down dead material.

Others eat microorganisms.

Others are predators.

Together, these organisms participate in processes that recycle nutrients and support plant communities.

The world beneath your feet may be one of the most biologically active places you encounter all day.

And much of it is invisible without magnification.

I Wonder…Why Do Mushrooms Appear After Rain?

It can seem almost magical.

One day there are no mushrooms.

Then it rains, and suddenly they seem to be everywhere.

But the fungus didn't necessarily arrive overnight.

Much of a fungus can exist as a network of threadlike structures called mycelium, growing within soil, wood, or other material.

The mushroom we see is a reproductive structure produced by certain fungi.

Moisture and other environmental conditions can trigger fungi to produce these visible structures.

Think of it somewhat like seeing an apple on a tree.

The apple isn't the entire organism.

Neither is the mushroom.

The next time you see mushrooms after rain, ask yourself:

Where is the rest of the fungus?

I Wonder…Why Do Frogs Call After Rain?

A quiet evening can suddenly become a chorus after a warm rain.

For many frogs and toads, moisture and suitable temperatures create favorable conditions for activity and breeding.

The calls you hear are often males advertising to potential mates. Different species produce different calls, allowing naturalists to identify many frogs without seeing them.

One might peep.

Another trill.

Another sound like a banjo string.

Instead of asking only, “What frog is that?”, try recording when you hear it.

What was the temperature?

Did it rain?

What month is it?

Are the same species calling a month later?

Now you're beginning to investigate patterns.

I Wonder…Why Do Squirrels Bury Acorns?

Watch a squirrel in autumn and you may see it carrying an acorn across the yard, digging a small hole, burying the acorn, and covering it.

Why?

Food storage.

Squirrels cache food that can be retrieved later when other resources may be harder to find.

But squirrels don't recover every buried seed.

Some forgotten acorns remain in the soil and germinate.

A behavior that helps a squirrel survive can therefore also contribute to seed dispersal.

One small action connects an animal to the future of a forest.

I Wonder…Why Are Some Flowers Different Shapes?

Compare several flowers.

One may be flat and open.

Another forms a tube.

Another resembles a bell.

Some have landing platforms, deep nectar sources, unusual colors, or strong scents.

Flowers interact with pollinators in different ways. Their shapes, colors, scents, flowering times, and rewards can influence which animals visit them.

A hummingbird, butterfly, bee, beetle, moth, and fly don't experience a flower in exactly the same way.

The next time you find several types of flowers, don't just compare the plants.

Watch their visitors.

Who visits which flower?

You may discover that flower shape tells part of a much larger ecological story.

I Wonder…Where Insects Go in Winter?

The answer is almost everywhere.

Different insects survive winter in different life stages and locations.

Depending on the species, an insect might spend winter as an egg, larva, pupa, or adult. Some shelter beneath bark, underground, inside plant stems, beneath leaves, or in other protected locations.

Others migrate.

This means a garden that appears empty during winter may contain next summer's insects hidden throughout the landscape.

A dead-looking plant stem may not be empty.

Fallen leaves may be shelter.

Nature doesn't disappear during winter.

Much of it simply becomes harder to see.

I Wonder…Why Are Dead Trees Important?

A standing dead tree might look like something that should be removed.

In an appropriate natural setting, however, dead trees can provide valuable habitat.

Woodpeckers may create cavities.

Other birds may later use those cavities for nesting.

Insects live beneath bark and within decaying wood.

Fungi help decompose the tree.

Animals may shelter inside openings.

Eventually, the tree falls and continues providing habitat while slowly returning nutrients to the ecosystem.

To a naturalist, death in an ecosystem isn't simply an ending.

It becomes part of what happens next.

I Wonder…How Nature Knows When Spring Has Arrived?

Nature doesn't use a calendar.

Plants and animals respond to environmental cues such as temperature, daylight, rainfall, and other changing conditions.

Flowers bloom.

Trees produce leaves.

Insects emerge.

Birds migrate.

Frogs begin calling.

Studying the timing of recurring events in nature is called phenology.

And this is something young naturalists can investigate themselves.

Choose one tree or flowering plant and watch it throughout the year.

Record when buds appear.

When leaves open.

When flowers bloom.

When seeds form.

When leaves change color.

You have created your own record of the seasons.

Turn “I Wonder” into “Let's Find Out”

Here is one of the best naturalist activities you can try.

Create an I Wonder Journal.

Every time you explore outdoors, write down one question.

I wonder why…

I wonder where…

I wonder how…

I wonder what would happen if…

Don't immediately search for the answer.

First, think about how you might investigate the question yourself.

Could you observe the animal longer?

Return at a different time?

Take a photograph?

Make a sketch?

Count something?

Compare two plants?

Visit again after rain?

Then research what scientists already know.

Your goal isn't simply to collect answers.

It is to learn how questions become investigations.

Don't Be Afraid of Questions Without Answers

Sometimes you won't find an answer.

That's part of being a naturalist.

Perhaps you see an insect disappear beneath a leaf and never determine what it was.

You hear an unfamiliar bird but can't find it.

You discover tracks but can't confidently identify the animal.

Write the observation down anyway.

Unknown is a perfectly acceptable entry in a field journal.

Good naturalists don't force every mystery into an answer.

They record what they know, recognize what they don't know, and remain curious.

Your Young Naturalist Challenge: Ask Five Questions

Go outside for 20 minutes.

You don't need a special destination. Explore a backyard, schoolyard, garden, neighborhood, park, or trail.

Your mission isn't to identify five things.

It's to ask five questions.

Find something that makes you wonder.

Write:

I wonder…

Then find another.

At the end of your exploration, choose the question that interests you most.

Before looking up the answer, decide how you could learn something about it through observation.

You may be surprised by where one question leads.

Never Stop Wondering

Children sometimes believe that experts are people who know all the answers.

But scientists and naturalists build careers around questions that haven't been completely answered.

They notice something.

They wonder.

They investigate.

They discover something.

And that discovery often creates another question.

The cycle begins again.

That is one of the wonderful things about exploring nature.

You can learn the names of hundreds of birds and still hear a sound you don't recognize.

You can identify dozens of wildflowers and still discover one you've never seen.

You can visit the same pond for years and still witness something unexpected.

There will always be another mystery.

So the next time you see something unusual, don't worry if you don't know what it is or why it's happening.

You've already found the most important place to begin:

“I wonder…”

Nature on the Brink: Youth Connection — Naturalist SeriesInspiring curiosity, building connections, and growing the next generation of conservationists.