TED-Ed
TED-ED: The three different ways mammals give birth - Kate Slabosky
All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological differences - and one of the most remarkable differences is how they give birth. Kate...
MinuteEarth
Why do Some Species Thrive in Cities?
Urban development can be tough on wildlife. But some plants and animals are adapting to our cities in surprising ways.
TED-Ed
TED-Ed: Could we survive prolonged space travel? - Lisa Nip
Prolonged space travel plays a severe toll on the human body: microgravity impairs muscle and bone growth, and high doses of radiation cause irreversible mutations. As we seriously consider the human species becoming space-faring, a big...
Bozeman Science
Niche
Paul Andersen explains the niche. He gives three different pronunciations and two different definitions. He then discusses the competitive exclusion principle and the idea that a niche cannot be shared by two species.
Bozeman Science
Mechanisms of Timing and Control
Paul Andersen explains how organisms regulate timing and control. Phototropism and Photoperiodism allow plants to respond to light throughout the day and year. Circadian rhythms are used in all organisms (including animals) as an...
SciShow
Why Are Mules Sterile?
Horse plus donkey — it seems like an unlikely combination. I mean, they're different species! And yet, when they get together, they can produce a mule or the lesser-known hinny. Either way, those offspring usually can't become parents...
SciShow
Reinventing the Wheel: 5 Species That Roll
If wheels and rolling have proven so efficient for humans, why hasn’t evolution pushed at least some other species in that direction? Well actually, there are a few species that can get around by rolling. Chapters View all GOLDEN WHEEL...
TED-Ed
TED-Ed: Can you solve the honeybee riddle? | Dan Finkel
You're a biologist on a mission to keep the rare honeybee Apis Trifecta from going extinct. The last 60 bees of the species are in your terrarium. You've already constructed wire frames of the appropriate size and shape. Now you need to...
Be Smart
There Was No First Human
If you traced your family tree back 185 million generations, you wouldn't be looking at a human, a primate, or even a mammal. You'd be looking at a fish. So where along that line does the first human show up? The answer may surprise you
SciShow
The Oldest Plant-Like Fossils Ever
Researchers might have discovered the 2 oldest plant-like fossils this week! Meanwhile, scientists learned more about another superpower of our favorite organism: tardigrades.
SciShow
The Terrifying Fish with Transparent Teeth
The deep-sea dragonfish is a predator that lives deep in the Pacific Ocean. Like many other deep sea predators, it's got an oversized jaw and a bioluminescent appendage to attract prey, but it does have one weird (and strangely useful)...
SciShow
Why Is It So Hard to Let Go of Grudges?
We all have some displeasing memories from the past that still make our blood boil. Why are those grudges so hard to let go of?
TED Talks
Cheryl Hayashi: The magnificence of spider silk
Cheryl Hayashi studies spider silk, one of nature's most high-performance materials. Each species of spider can make up to 7 very different kinds of silk. How do they do it? Hayashi explains at the DNA level -- then shows us how this...
SciShow
The Oldest DNA Ever Found
Researchers mapped the mammoth family tree by extracting DNA from fossils. Also, scientists found some sessile animals living under Antarctica's ice shelf, and they're really cool.
SciShow
Those Pretty Road Medians May Be Bad for Bugs
Cities have been working hard to transform the areas around roads into healthy habitats for important pollinating insects. And these insects seem to love our roadside landscapes, but these areas might also be luring them to their...
SciShow
The Deep-Sea Snail with an Iron Shell
Deep in the Indian Ocean, scientists have discovered a snail whose feet are covered in iron scales, but how it builds these scales is a bit of a mystery.
SciShow
For These 7 Species, Sex Changes Everything
Animals and plants come in an amazing variety of shapes, sizes and colors. And in some species, they take it pretty extreme to deal with the battles within and between sexes.
SciShow
How to Make A Humanzee
We all know about inter species animal hybrids - Napoleon Dynamite's favorite animal, the liger, is a typical example. But could a human and our closest primate relative the chimpanzee also breed a living hybrid? Hank explores this ......
SciShow
Camel Dung was The First Probiotic
Back in the day, bacterial diseases like dysentery were super deadly, but the nomadic people in northern Africa had long known about an effective, if hard to swallow, cure.
TED Talks
TED: How will we survive when the population hits 10 billion? | Charles C. Mann
By 2050, an estimated 10 billion people will live on earth. How are we going to provide everybody with basic needs while also avoiding the worst impacts of climate change? In a talk packed with wit and wisdom, science journalist Charles...
TED-Ed
TED-ED: When will the next mass extinction occur? - Borths, D'Emic, and Pritchard
About 66 million years ago, a terrible extinction event wiped out the dinosaurs. But it wasn't the only event of this kind -- extinctions of various severity have occurred throughout the Earth's history -- and are still happening all...
TED-Ed
TED-Ed: Can plants talk to each other? - Richard Karban
Can plants talk to each other? It certainly doesn't seem that way: They don't have complex sensory or nervous systems, like animals do, and they look pretty passive. But odd as it sounds, plants can communicate with each other "...
SciShow
The Secret Behind Bioluminescent Bays
In a few special places around the world, the ocean lights up at night with countless tiny blue flashes thanks to some tiny organisms and science.
TED-Ed
TED-ED: How brain parasites change their host's behavior - Jaap de Roode
The biggest challenge in a parasite's life is to move from one host to another. Intriguingly, many parasites have evolved the ability to manipulate the behavior of their hosts to improve their own survival -- sometimes even by direct...