Have you ever wondered why God made mosquitoes? How an axolotl can regrow parts of its body? If a snail is born with a shell? Or why an octopus has three hearts?
Welcome to Nat Theo (Nat = Natural, Theo = Theology), a Bible-based nature and science podcast for curious kids and their families! Join Master Naturalist, Bible teacher, and author Eryn Lynum as we explore fascinating creatures, incredible science, and the truths of God’s Word.
Through engaging stories, surprising facts, and memorable nature lessons, children discover how creation points to its Creator. From tiny insects and backyard birds to capybaras, axolotls, dinosaurs, oceans, weather, space, and more, each episode helps families develop a biblical worldview while growing in faith and wonder.
Whether you homeschool or attend public, private, or Christian school, Nat Theo makes a fun and educational addition to your family’s week. It’s science rooted in Scripture, nature study filled with wonder, and biblical truth you can carry with you wherever they go.
The Natural Theology Project helps families nurture faith and wonder through Bible-based nature study, science curriculum, and the Nat Theo podcast.
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What Kind of Soil Is My Heart? With the Kids Bible Stories Podcast
Saison 1 · Épisode 183
jeudi 12 novembre 2026 • Durée 17:56
In this special episode with the Kids Bible Stories podcast, we discover what Jesus taught about soil in Mark 4:1–20.
In this episode, we journey through the Gospel of Mark as Jesus teaches beside the lake and tells the Parable of the Sower. Using the picture of a farmer scattering seed, Jesus helps us understand what can happen in our hearts when we hear God’s Word.
Children will be invited to consider an important question: How do I respond when I hear God’s Word?
Kids Will Learn
What a parable is.
What the seed and the different kinds of soil represent.
Why people respond to God’s Word in different ways.
Why we all need Jesus to forgive us, change us, and help us receive His Word with faith.
That the “crop” Jesus describes isn’t corn or tomatoes! It is the fruit of a changed heart—one that increasingly reflects Jesus through love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control.
Keep Listening
Discover more than 400 episodes of Kids Bible Stories podcast—completely free wherever you listen to podcasts. Simply search Kids Bible Stories. Or visit https://www.kbspodcast.com/
Do Earthworms Really Have Five Hearts? Lesson 153
Saison 1 · Épisode 184
mardi 10 novembre 2026 • Durée 28:41
What has no legs, arms, or eyes…but has hair? Earthworms! Wait, earthworms have hair? Discover the mysterious underground life of worms and how they’re designed to help plants, creatures, and humans.
“So let’s not get tired of doing what is good. At just the right time we will reap a harvest of blessing if we don’t give up.” Galatians 6:9 (NLT)
“In all the work you are doing, work the best you can. Work as if you were doing it for the Lord, not for people.” Colossians 3:23 (NCV)
Terms Learned in This Episode:
Invertebrates: Animals without backbones.
Annelida: The animal group (phylum) made up of segmented worms—worms whose bodies are divided into repeating sections.
Annuli: The ring-like segments or grooves that divide an annelid’s body into sections.
Aortic Arches: Blood vessels in an earthworm that help pump blood through its body.
Hermaphrodite: A creature with both female and male parts in its body.
Clitellum: The thick, lighter-colored band around an earthworm’s body that helps with reproduction and forms the cocoon where its eggs develop.
Detritivores: Creatures that eat dead or decaying things and mix it into the soil.
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Why Do Catfish Have Whiskers? Lesson 152
Saison 1 · Épisode 182
mardi 3 novembre 2026 • Durée 29:20
Have you ever heard of a fish that can walk across dry land and even rockclimb? Meet the catfish: a mysterious bottom dweller full of shocking surprises. Discover a 600-pound monster catfish, a tiny catfish with rock climbing skills, and what’s up with a catfish’s whiskers. Learn how these fascinating creatures navigate murky waters and how we can find our way in life when the path ahead isn’t clear.
The Nature of Rest: What the Bible and Creation Teach Us About Sabbath Living:
Why Are Skunks Smelly? Lesson 151
Saison 1 · Épisode 181
mardi 27 octobre 2026 • Durée 25:50
Skunks have a stinky reputation, but if we can learn to look past the stink, we can see how God designed these marvelous mammals and why they’re very important in creation. Discover the chemistry of a skunk’s stinky spray and how they can help us care for outcasts and “the least of these.”
You've probably heard the saying, "It's raining cats and dogs!" But what about raining salamanders? Believe it or not, scientists once had a very strange idea about where salamanders came from. Discover this surprising—and slightly silly—piece of science history in a special reading by Eryn Lynum.
Order a signed copy of Made to Marvel: https://thenaturaltheologyproject.com/Marvel
Save money and get a free gift when you bundle both of Eryn's new books! https://thenaturaltheologyproject.com/bundle
Can Dragonflies Fly Backward? Lesson 150
Saison 1 · Épisode 179
mardi 20 octobre 2026 • Durée 27:58
Dragonflies are marvels of engineering. These expert stunt flyers can wow us with their sharp turns, hovering, and aerodynamic acrobatics. They are often called the greatest flyers of the insect world, and for good reasons. Discover how God designed dragonflies for expert flight, and how God is the very first—and very best—engineer.
Gliding across ocean floors are one of the most colorful creatures on earth: nudibranchs, or a type of vibrant sea slug. These fancy slugs have a surprisingly toxic diet. Discover how nudibranchs don’t only eat stinging jellyfish, but store up those stings and use them when they need to!
Here’s our trail map:
Is a Sea Slug a Real Slug?
Why Are Nudibranchs So Colorful?
How Do Nudibranchs Steal Stings?
How Can We Store Up Good Things Instead of Toxins?
Meet an animal that only ever gives birth to identical quadruplets: the nine-banded armadillo! Discover how God engineered armadillos with built-in armor and what they can teach us about God’s grace in a world with diseases.
What does it mean to "follow where wonder leads?" Join Willow and her cousin, Casper, as they begin their adventure amongst redwood trees and discover treasure in the forest. This is a special reading by Eryn Lynum of her brand-new children's book, Where Wonder Leads.
Order a signed copy of Where Wonder Leads: https://thenaturaltheologyproject.com/Wonder
Save money and get a free gift when you bundle both of Eryn's new books! https://thenaturaltheologyproject.com/bundle
Mentioned in this episode:
Explore common creatures and plants in Made to Marvel
Order a signed copy of Made to Marvel: 52 Family Devotions Exploring the Wild Wonders of God's Creation: https://thenaturaltheologyproject.com/marvel
Bundle both of Eryn's new books: https://thenaturaltheologyproject.com/bundle
Is a Toadstool Mushroom Poisonous? Lesson 147
Saison 1 · Épisode 175
mardi 29 septembre 2026 • Durée 28:11
Toadstool mushrooms pop up in fairy tales and folklore and often come with a warning: “Don’t touch!” But are toadstools poisonous? And why do they appear like magic after rain? Unravel the marvels of mushrooms and discover how they appear not by magic but by design.
Here’s our trail map:
Why Do Mushrooms Appear After Rain?
How Do Mushrooms Spread?
Are Toadstool Mushrooms Poisonous?
How Do Mushrooms Remind Us That God is Always Near?
Download this lesson’s free coloring sheet: https://thenaturaltheologyproject.com/why-do-mushrooms-appear-after-rain/
Related Lessons to listen to next:
What Lives In A Pile Of Leaves? https://player.captivate.fm/episode/f8e5415c-9896-4c3a-8306-b7fe74be76a6/
Are Mushrooms Aliens? And Does Fungus Know How to Code?: https://player.captivate.fm/episode/b5b86cc0-358b-4136-bc79-643bd15aff9b/
“Jesus has the power of God, by which he has given us everything we need to live and to serve God…” 2 Peter 1:3a (NCV)
“But if any of you needs wisdom, you should ask God for it. He is generous to everyone and will give you wisdom without criticizing you.” James 1:5 (NCV)
“Your word is like a lamp for my feet
and a light for my path.” Psalm 119:105 (NCV)
“But the Helper will teach you everything and will cause you to remember all that I told you. This Helper is the Holy Spirit whom the Father will send in my name.” John 14:26 (NCV)
Terms Learned in This Episode:
Siluriformes: The order or category of fish that are commonly called catfish. They do not have scales. Instead, they have smooth skin or hard armored plates. Many have whisker-like sensors on their face.
Arborescent Organ: A specialized, tree-like breathing organ that allows some fish, such as walking catfish, to take oxygen from the air.
Barbels: Whisker-like feelers around a catfish’s mouth that help it sense its surroundings and find food, especially in dark or muddy water.
Chemoreceptors: Special cells that detect chemicals, helping an animal taste or smell things in its surroundings.
Olfactory Rosettes: Folded, ribbonlike structures inside a catfish’s nose that are covered in smell sensors to help it detect scents in the water.
Weberian Apparatus: A set of tiny bones in some fish that connects the swim bladder to the inner ear so sound vibrations can be heard better.
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“...God does not see the same way people see. People look at the outside of a person, but the Lord looks at the heart.” 1 Samuel 16:7b (NCV)
“‘I was hungry, and you gave me food. I was thirsty, and you gave me something to drink. I was alone and away from home, and you invited me into your house. I was without clothes, and you gave me something to wear. I was sick, and you cared for me. I was in prison, and you visited me.’
Then the good people will answer, ‘Lord, when did we see you hungry and give you food, or thirsty and give you something to drink? When did we see you alone and away from home and invite you into our house? When did we see you without clothes and give you something to wear? When did we see you sick or in prison and care for you?’
Then the King will answer, ‘I tell you the truth, anything you did for even the least of my people here, you also did for me.’” Matthew 25:35-40 (NCV)
“I give you a new command: Love each other. You must love each other as I have loved you. All people will know that you are my followers if you love each other.” John 13:34-35 (NCV)
Terms Learned in This Episode:
Musteloidea: A large group (superfamily) of mammals that includes skunks, weasels, mink, and otters; many members of this group have scent glands.
Mephitidae: The skunk family—a group of mammals known for producing a powerful, smelly spray for defense.
Gland: A part of the body that produces and releases something the body needs or uses.
Thiol: A chemical compound made of two hydrogen and sulfur.
Sulfur: A naturally occurring element found in rocks, soil, living things, and many chemicals.
Biological Control: A living thing that helps control (or reduce) another living thing that could cause problems.
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the earth is full of your creatures.” Psalm 104:24 (NIV)
“Wisdom begins with respect for the Lord;
those who obey his orders have good understanding.
He should be praised forever.” Psalm 111:10 (NCV)
“Great are the works of the Lord;
they are pondered by all who delight in them.” Psalm 111:2 (NIV)
Terms Learned in This Episode:
Odonata: The order or group of insects that includes dragonflies and damselflies.
Mandible: Strong, jaw-like mouthpart that an insect uses to bite, cut, or chew food.
Compound Eye: An eye made of many tiny lenses working together.
Ommatidia: Tiny sections of a compound eye, each with its own lens that helps the insect see.
Ocelli: Simple eyes on an insect’s head that mainly help detect light, darkness, and changes in brightness.
Labium: A dragonfly nymph's lower jaw that shoots out as a weapon to catch prey.
Direct Flight Muscle: A muscle that is attached to one wing and moves just that wing.
Leading-edge Vortex: A small, spinning swirl of air (like a tiny tornado) made at the front edge of a wing that gives an insect extra lift to stay in the air.
Wisdom: Knowing what is right and true, and using that understanding to do good.
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“Look at the sea, so big and wide, with creatures large and small that cannot be counted.” Psalm 104:25 (NCV)
“Be careful what you think, because your thoughts run your life.” Proverbs 4:23 (NCV)
“Good people bring good things out of the good they stored in their hearts. But evil people bring evil things out of the evil they stored in their hearts. People speak the things that are in their hearts.” Luke 6:45 (NCV)
“Brothers and sisters, think about the things that are good and worthy of praise. Think about the things that are true and honorable and right and pure and beautiful and respected.” Philippians 4:8 (NCV)
Terms Learned in This Episode:
Mollusk: A phylum (category) of animals that have soft bodies and no bones (invertebrates). Some have shells for protection.
Gastropod: The animal class or category that includes snails and slugs.
Nudibranch: A specific type of sea slug, often brightly colored, that has no external shell as an adult.
Cerata: The fingerlike spikes on aeolid nudibranchs’ backs that help them breathe and protect themselves.
Rhinophores: The antenna or horn-like appendages on a nudibranch’s head that help it sense food, other nudibranchs, and anything else around it.
Benthic Animals: Animals that scoot, scurry, hop, or otherwise move around on the bottom of a body of water instead of swimming.
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“When Jesus came down from the hill, great crowds followed him. Then a man with a skin disease came to Jesus. The man bowed down before him and said, ‘Lord, you can heal me if you will.’
Jesus reached out his hand and touched the man and said, ‘I will. Be healed!’ And immediately the man was healed from his disease.” Matthew 8:1-3 (NCV)
“So we do not give up. Our physical body is becoming older and weaker, but our spirit inside us is made new every day. We have small troubles for a while now, but they are helping us gain an eternal glory that is much greater than the troubles. We set our eyes not on what we see but on what we cannot see. What we see will last only a short time, but what we cannot see will last forever.” 2 Corinthians 4:16-18 (NCV)
“He will wipe away every tear from their eyes, and there will be no more death, sadness, crying, or pain, because all the old ways are gone.” Revelation 21:4 (NCV)
Terms Learned in This Episode:
Mammal: A group of animals that have hair or fur, are warm-blooded, have a backbone, (most) have live births, and feed their babies with milk from their bodies.
Carapace: The hard protective covering on the back of an animal, such as a turtle, crab, or armadillo.
Cingulata: The order or category of animals that includes armadillos. The name means “belted ones” because of the bands of armor around their bodies.
Osteoderms: Small plates of bone that grow in an animal’s skin and help form protective armor.
Keratin: A tough protein that makes up things like hair, nails, claws, horns, and the outer covering of an armadillo’s armor.
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“I fill all of heaven and earth,’ says the Lord.” Jeremiah 23:23-24 (NCV)
“Where can I go to get away from your Spirit?
Where can I run from you?
If I go up to the heavens, you are there.
If I lie down in the grave, you are there.
If I rise with the sun in the east
and settle in the west beyond the sea,
even there you would guide me.
With your right hand you would hold me.” Psalm 139:7-10 (NCV)
“So don’t worry, because I am with you.
Don’t be afraid, because I am your God.
I will make you strong and will help you;
I will support you with my right hand that saves you.” Isaiah 41:10 (NCV)
Terms Learned in This Episode:
Fungus: A living thing that is not a plant or an animal. Fungi include mushrooms, molds, and yeasts.
Hypha: A single tiny, threadlike strand that makes up the main body of a fungus.
Hyphae: Many tiny, threadlike strands that make up the main body of a fungus. They grow through soil, wood, or other material.
Mycelial Network: The web of tiny fungal threads (hyphae) that grows through soil, wood, or other material and absorbs nutrients.
Mushroom: The fruiting body of a fungus.
Spores: Tiny reproductive cells that mushrooms release to grow new fungi.
Gills: The thin, flat structures found underneath the caps of many mushrooms. They produce and release spores.
Fly Agaric (Amanita Muscaria): Poisonous mushrooms that usually have bright red or orange caps dotted with raised white patches, along with white gills and a pale stem.
Omnipresent: Being present everywhere at the same time.
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