When you hear the words dire wolf, your mind might jump to Game of Thrones or Dungeons and Dragons, but dire wolves are not just in the realm of fantasy and fiction. They were real animals that lived during the last Ice Age, and we're...

Frogs are really cool! They can jump high, swim fast, and their skin is super slimy! But frogs have some less-slimy, less-hoppy relatives that are just as cool: toads! Join Jessi and squeaks to learn the big and little differences...

Our image of dinosaurs has been constantly changing since naturalists started studying them about 350 years ago. Taken together, these pictures can tell us a whole lot about just how much we have learned. Let's explore the history of...

Experts are still arguing over whether Archaeopteryx was a true bird, or a paravian dinosaur, or some other kind of dino. But regardless of what side you're on, how did this fascinating, bird-like animal relate to today's birds? It turns...

Halitosis is a curse that has plagued humanity since ancient times. But what causes it, and why is it so universally terrifying? Mel Rosenberg outlines the basics of bad breath and what you can do when it strikes you.

Ever not felt completely like yourself? There's a good reason for that. Because a large part of you isn't actually you. Our bodies are home to ten times as many microbes as human cells. We are walking ecosystems, each of us home to...

Scientific discovery isn't as simple as one good experiment. The weird and wonderful history of cell theory illuminates the twists and turns that came together to build the foundations of biology.

This video is brought to you by the Child and Teen Checkups program of the Minnesota Department of Health.

February 2nd is Groundhog Day in the United States, and Jessi and Squeaks are celebrating by sharing all kinds of amazing groundhog facts with us! Learn what groundhogs eat, where they live, and how they make it through tough winters!

Sharks are fascinating creatures with cool teeth, awesome scales, and there are over 450 kinds of sharks! Join Jessi and Squeaks to learn some super shark facts!

Purgatorius, a kind of mammal called a plesiadapiform, might've been one of your earliest ancestors. But how did we get from a mouse-sized creature that looked more like a squirrel than a monkey -- to you, a member of Homo sapiens?

New ReviewEvery once in a while chain emails or Facebook posts make their way back into prominence. It happened last year with HPV killing girls. Recently, it seems to be Fluoride. A number of you have been forwarding me a post from last year...

Dive into the world of dental health with our "Teeth Song"! Perfect for kids, this catchy tune will spark your imagination and teach you all about the wonders of keeping your teeth clean and healthy.

Jumpstart your day with our "Get Ready Song"! Perfect for kids, this catchy tune will spark your energy and teach you all about the wonders of getting ready and starting your day right.

Rates of teen suicide are rising, and rates for girls are higher than any time in the last 40 years. There are a number of ways to address this problem, but why aren't we using evidence based approaches to the problem?

Get to know this large marine mammal.

Hyraxes are furry potatoes that look a lot like rodents, but at the mammal family reunion, you won’t find them sitting by the groundhogs and chinchillas. Instead, their actual cousins are elephants and sea cows…and we’re not sure which...

Coyote and Mario are on the hunt for prehistoric shark teeth the size of your hand! Teaming up with real fossil experts—and world-record-breaking explorer Lexie Limitless—they’re diving into the mud to see who can score the biggest...

Coyote and Mario are on the hunt for prehistoric shark teeth the size of your hand! Teaming up with real fossil experts—and world-record-breaking explorer Lexie Limitless—they’re diving into the mud to see who can score the biggest...

Coyote and Mario are on the hunt for prehistoric shark teeth the size of your hand! Teaming up with real fossil experts—and world-record-breaking explorer Lexie Limitless—they’re diving into the mud to see who can score the biggest...

Coyote and Mario are on the hunt for prehistoric shark teeth the size of your hand! Teaming up with real fossil experts—and world-record-breaking explorer Lexie Limitless—they’re diving into the mud to see who can score the biggest...

Eli Whitney’s invention of the cotton gin in 1793 transformed American agriculture. By quickly separating cotton fibers from seeds, it made cotton a profitable crop—and deeply impacted the economy of the South. But the invention also had...

Many say that the waters of America’s Northern coasts are home to an elusive sea serpent of legend. Named Caddy! Or Cadborosaurus, for long. Sightings and testimonials go back generations. Who is Caddy? And why are serpentine water...

Science Kids Ocean Predators - Killer Whales, Great White Sharks, Piranhas and More!

The great white shark, a solitary and formidable predator of the ocean, boasts impressive physical attributes and hunting capabilities. With its...