Ever wondered how trees keep track of time? They don’t wear wristwatches, so…do they have a tree calendar? Or count their rings like candles on a birthday cake? We asked arborist Casey Clapp to help us find the answer.

Got a question that’s budding in your mind? Send it to us at BrainsOn.org/contact, and we’ll help sprout the answer!

Antarctica. Home of the South Pole and an incredibly diverse population of sea life. You know what there’s not a lot of in Antarctica? People! But there are some adventurous scientists who go there for research. These folks  can’t just zip out to the grocery store when they want to make a meal…so what do they eat?  We asked scientist Cameron Hearn to help us find the answer.

Got a question that’s just the tip of the iceberg? Send it to us at BrainsOn.org/contact, and we’ll give you an ocean of knowledge!

The paper money that we use in the United States is printed by the Department of the Treasury. But if money is printed…well, then why couldn’t someone print hundreds of dollars for themselves? How do you know if the crisp five dollar bill in your hand is the real deal or a fake-a-rooni? We asked money expert and Million Bazillion co-host Bridget Bodnar to help us find the answer.

Got a question banked in your brain?  Send it to us at BrainsOn.org/contact, and we’ll spend our time on the answer!

Have you ever picked up a peach in the supermarket and noticed that its skin is covered in soft fuzz? What’s that about? Should we be taking our peaches to barbershops? And what about kiwis? They’re covered in scratchy hairs! Why do some fruits have fuzz while others have smooth skin? We talked to Dario Chavez from the University of Georgia to find out.

Got a fresh ‘n’ fruity question? Send it to us atBrainsOn.org/contact, and we’ll help find an a-peeling answer.

Human butts are divided into two cheeks that come in all shapes and sizes. Plus, they help us stand upright and move around! But what about dogs and cats? Why don’t they have butt cheeks like ours? We asked dog researcher Alexandra Horowitzto help us find the answer.

Got a question you’ve been sitting on? Send it to us at BrainsOn.org/contact, and we’ll help you crack it open!

There are lots of things we can do to relax and get ready for bed at the end of the day: take a warm bath, curl up with a book, or even sip a steaming mug of chamomile tea! But why does chamomile tea make us feel so sleepy? We asked brain doctor and sleep expert Chris Winter to help us find the answer.

Got ZZZZZ-illions of questions? Send them to us at BrainsOn.org/contact, and we’ll help find the answers in a sNAP!

If you’ve ever had a ball tossed at your face, you probably flinched, tried to knock it away from your face, or jumped out of the way, right? That’s called a reflex, and most humans have them including tiny babies. We asked physical therapist Karen Litzy why that is.

Got a question for us? Send it to us at BrainsOn.org/contact, and we’ll help find the answer! 

People all over the world have little brown dots called freckles on their skin. You might notice that you get new freckles if you spend time out in the sun. So what are the deets on these dots? We asked dermatologist Kristen Kelley to help us find the answer.

Got a question about something and you need help connecting the dots?  Send it to us at BrainsOn.org/contact, and we’ll help spot the answer.

Owls are amazing. Most are nocturnal and hunt at night. They have incredible eyesight. And a group of them is called a parliament! One of our listeners was wondering how far they can turn their heads around. We asked Lauren Smith from the Owl Research Institute to help us find the answer.

Got a Moment of Um question that’s turning you upside down? Send it to us at BrainsOn.org/contact, and we’ll help get it all sorted out.

Who doesn’t love a dog nose? They’re cute, often very wet and way better at smelling the world than our puny human noses. Dog noses are one of the few places dogs don’t have hair. But what about inside? Do they have nose hair like we do? We asked dog researcher Alexandra Horowitz to help us find the answer.

Got a question that’s giving you a ruff time? Send it to us at BrainsOn.org/contact, and we’ll bark up the right tree for an answer!

The Earth is made up of giant masses of land called continents. There are seven continents, but which one came first? Where did it come from? We asked geologist Annie Bauer to help us find the answer.

Got a groundbreaking question? Send it to us at BrainsOn.org/contact, and we’ll dig into it!