TED-Ed
TED-Ed: Can you solve the troll’s paradox riddle? - Dan Finkel
You and your brother have discovered another realm and set off exploring the new wonderful world. Along the way, you see a troll catching creatures in an enormous net. The troll agrees to release the creatures if you can come up with a...
TED Talks
Freeman Dyson: Let's look for life in the outer solar system
Physicist Freeman Dyson suggests that we start looking for life on the moons of Jupiter and out past Neptune, in the Kuiper belt and the Oort cloud. He talks about what such life would be like -- and how we might find it.
SciShow
This Beautiful House Is Made of Snot
These giant balls of mucus may seem like a bizarre sight in the open ocean, but all this snot serves a purpose, both for the tiny creatures that produce it and for the entire ocean ecosystem!
SciShow
6 Animals That Thrive Upside-Down
For humans, being upside-down isn’t a comfy way to hang out for very long, but for these six animals, upside-down feels just right! Chapters THREE-TOED SLOTH 0:38 UPSIDE-DOWN JELLYFISH 2:10 NUTHATCH 3:37 RED-HEADED WOODPECKER 3:57 4:55...
Crash Course Kids
The Life Hydrologic
Last week we went up up up a mountain. Well, today we're going down down down into the ocean to see what habitats await us there. Yep, the ocean has layers and the types of things we encounter there change the deeper we go.
Crash Course
Natural Law Theory: Crash Course Philosophy
Our exploration of ethical theories continues with another theistic answer to the grounding problem: natural law theory. Thomas Aquinas’s version of this theory says that we all seek out what’s known as the basic goods and argued that...
SciShow Kids
5 Giant Ice Age Animals Natural History for Kids
12,000 years ago, the earth was very different, and so were some of the animals living on it! Here are 5 giants creatures you might have seen back then.
TED-Ed
TED-ED: Jellyfish predate dinosaurs. How have they survived so long? - David Gruber
Some are longer than a blue whale. Others are barely larger than a grain of sand. One species unleashes one of the most deadly venoms on earth; another holds a secret that's behind some of the greatest breakthroughs in biology. They've...
TED Talks
TED: The loves and lies of fireflies | Sara Lewis
Biologist Sara Lewis has spent the past 20 years getting to the bottom of the magic and wonder of fireflies. In this charming talk, she tells us how and why the beetles produce their silent sparks, what happens when two fireflies have...
SciShow
This Animal Has a Retractable Anus
Most animals keep their poop chutes on the opposite side of their body from where they eat. But that doesn’t mean it’s always the case, and bryozoans are great examples of how creative you can get with where you put your anus.
SciShow
5 Animals That Aren't Dinosaurs
If you get most of your information about ancient animals from vintage cartoons or action figures, then a lot of things that you think of as "dinosaurs" actually weren't. Learn about the definition of true dinosaurs and the evolutionary...
SciShow
The Shrimp and the Sponge: A Deep Sea Love Story
This Valentine’s Day weekend, we'd like to tell you a deep-sea shrimp love story that begins with a sponge, and two shrimp — and ends in forever.
TED-Ed
TED-Ed: Myths and misconceptions about evolution - Alex Gendler
How does evolution really work? Actually, not how some of our common evolutionary metaphors would have us believe. For instance, it's species, not individual organisms, that adapt to produce evolution, and genes don't "want" to be passed...
SciShow
An Ode to Salps: Our Gelatinous Marine Cousins
Salps are more than just strange balls of goo drifting through the sea—in fact, they’re more closely related to us than they are to jellyfish, and play a huge role in marine ecosystems and the global carbon cycle as the “vacuum cleaners...
SciShow
Living Fossils Are Dead! Long Live Living Fossils
Scientists are looking to end how we categorize living fossils, and in doing so, give the phrase new life.
SciShow
Can Animals Predict Earthquakes?
You might have heard about animals behaving oddly right before an earthquake hits. But are these reports more than just anecdotes?
TED Talks
TED: Meet a young entrepreneur, cartoonist, designer, activist ... | Maya Penn
Maya Penn started her first company when she was 8 years old, and thinks deeply about how to be responsible both to her customers and to the planet. She shares her story -- and some animations, and some designs, and some infectious...
PBS
The Tully Monster & Other Problematic Creatures
There are animals in the fossil record that challenge some of our most basic ideas about what animals are supposed to look like. If there ever was a monster on this planet that was worthy of the name, it might have been the Tully Monster.
TED Talks
TED: The four fish we're overeating -- and what to eat instead | Paul Greenberg
The way we fish for popular seafood such as salmon, tuna and shrimp is threatening to ruin our oceans. Paul Greenberg explores the sheer size and irrationality of the seafood economy, and suggests a few specific ways we can change it, to...
TED-Ed
TED-ED: The otherworldly creatures in the ocean's deepest depths - Lidia Lins
About 60 percent of the ocean is a cold, dark region that spans down to 11,000 meters. This zone is known as the deep ocean, and though it seems like an inhospitable and remote corner of the planet, it is actually one of the greatest...
SciShow
Why Gooey Creatures Might Outlast Us All
Although gelatinous animals might seem like simple creatures, they'll probably outlast the rest of us, because being gelatinous might turn out to be the ultimate survival strategy.
SciShow
Sea Turtles Really DO Carry a (Microscopic) World on Their Backs
Several cultures portray the world as being carried on the back of a giant turtle. As it turns out, sea turtles really do house an entire world on their backs — one of microscopic organisms, that is!
Curated Video
The Extinction That Never Happened
Natural history is full of living things that were long thought to have gone extinct only to show up again, alive and well. Paleontologists have a word for these kinds of organisms: They call them Lazarus taxa.