MinuteEarth
How Fevers REALLY Work
Fevers are one of our best weapons against infections, but they don't work like you might think.
SciShow
Dinosaurs Probably Weren't Cold-Blooded, According to Eggshells
Scientists can find answers in some pretty unusual places, and recently they found some evidence that dinosaurs weren't cold-blooded by looking at... eggshells?
SciShow
Why Do Fevers Get Worse at Night?
If you’ve ever noticed that being sick often sucks more at night, that wasn’t your imagination. Fevers do often rise at night! Why do our bodies do that? Is there a reason we have to suffer more?
TED-Ed
Meet the bluefin tuna, the toughest fish in the sea | Grantly Galland and Raiana McKinney
What's as big as a polar bear, swallows its prey whole, and swims at forty miles an hour? It's not a shark or a killer whale... it's the Atlantic bluefin tuna— the largest and longest-lived of the 15 tuna species. Its unique set of...
SciShow
Abilities Evolution Took From Us
A common misconception is that evolution is a long chain of progress, where organisms gain cool, new features over time. However, if a trait doesn't help with survival or reproduction, eventually it can disappear. Here are a few...
SciShow Kids
Odd Facts About Sloths
Sloths might be slow and spend much of their time sleeping, but they’re definitely not boring. Jessi shares three weird facts about sloths!
Bozeman Science
Response to External Environments
Paul Andersen explains how organisms respond to the external environment. He begins with a discussion of behavioral responses like hibernation and migration. He ends with a discussion of physiological responses like shivering and...
Bozeman Science
Positive and Negative Feedback Loops
Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback...
SciShow Kids
Why Do We Sweat?
You probably know that sweating is a way for your body to cool off, but how does it help? And why don't other animals, like cats of dogs sweat? Join Jessi and Squeaks to learn all the answers to these questions and more!
Bozeman Science
Thermoregulation
Paul Andersen explains how organisms are able to regulate their internal body temperature (or not). He starts with a brief description conduction, convection, radiation and metabolism. He contrasts ectotherms and endotherms. He also...
Amoeba Sisters
Homeostasis and Negative/Positive Feedback
Explore homeostasis with the Amoeba Sisters and learn how homeostasis relates to feedback in the human body. This video gives examples of negative feedback (temperature and blood glucose regulation) and positive feedback (events in...
SciShow
Bears Have Babies While They’re Hibernating
Bears forgo many activities to conserve their energy in the winter when food is scarce, including eating, peeing, and pooping. There is one thing that they specifically DO do during the winter, though: give birth! But, giving birth...
SciShow
How Do Animals Change Color?
Changing colors -- it’s not just for chameleons! Many species of octopuses, squid and cuttlefish can do it, as well as a few insects, and even mammals and birds. Find out what feats of biology different animals use to change their...
SciShow Kids
Back To School | Compilation | SciShow Kids
Squeaks is getting ready to head back to school and he couldn’t be more excited! To make sure he’s all set for the first day, he and Jessi are watching some videos so he goes in confident and prepared!
SciShow
Plants That Keep Themselves Warm
Sometimes, plants do unexpected things. Like control their own body temperature.
TED-Ed
TED-Ed: What happens when you get heat stroke? - Douglas J. Casa
Have you ever suffered from exertional heat stroke? This condition is caused by intense activity in the heat and is one of the top three killers of athletes and soldiers in training. Douglas J. Casa explains heat stroke's tremendous...
SciShow Kids
Fun Facts About Groundhogs!
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!
Curated Video
Exploring the Potential of Hibernation for Long-Term Space Travel
This video discusses the potential use of hibernation in space travel to mitigate the physical and psychological challenges faced by astronauts. Researchers in Italy are experimenting with a synthetic molecule called daddle to induce...
Curated Video
Tortoises
An introduction to two very different types of tortoise – the jousting angulate tortoises of Dassen Island, and the giant tortoises of the Galapagos. Biology - Animal Kingdom - Learning Points. Male angulate tortoises are very...
Wonderscape
Discovering Dolphins: Beyond the Surface
Dive into the fascinating world of dolphins, exploring their significant differences from fish and understanding their remarkable intelligence. This educational journey contrasts dolphins with fish and sharks, highlighting their unique...
Wonderscape
The Power of Matter and Energy: Fueling Life
Discover how matter and energy are fundamental to sustaining life, from the foods we eat to the air we breathe. This video explores the crucial role of chemical energy derived from food, which powers everything from our daily activities...
Curated Video
Seasonal Changes and Their Impact on Life
Discover how seasons impact life across the globe. Learn why humans may feel down or eat more in winter, how animals like bears and tortoises hibernate to conserve energy, and why trees lose leaves to survive the cold. This guide...
Curated Video
Chilled to the Bone: Nicolas Vanier's Mastery of the Extreme Cold
Dive into the frigid world of Nicolas Vanier as he trains on the Vercors plateau, preparing for the grueling conditions of the Siberian winter. This feature explores how Nicolas and his sled dogs adapt to severe cold, focusing on...
Curated Video
Endurance on Ice: Nicolas Vanier's Epic Sled Dog Journey Across the Great North
Join Nicolas Vanier on his daring 6,000-kilometer journey through the rugged terrains of China, Russia, and Mongolia to Lake Baikal, powered by the incredible stamina of his sled dogs. This documentary delves into the human, technical,...