Instructional Video11:13
PBS

When We First Talked

12th - Higher Ed
The evolution of our ability to speak is its own epic saga and it’s worth pausing to appreciate that. It’s taken several million years to get to this moment where we can tell you about how it took several million years for us to get here.
Instructional Video9:13
PBS

When We First Made Tools

12th - Higher Ed
The tools made by our human ancestors may not seem like much when you compare them to the screen you’re looking at right now but their creation represents a pivotal moment in the origin of technology and in the evolution of our lineage.
Instructional Video10:11
PBS

When the Synapsids Struck Back

12th - Higher Ed
Synapsids were the world’s first-ever terrestrial megafauna but the vast majority of these giants were doomed to extinction. However some lived on, keeping a low profile among the dinosaurs. And now our world is the way it is because of...
Instructional Video10:34
PBS

When Penguins Went From The Sky To The Sea

12th - Higher Ed
Today, we think of penguins as small-ish, waddling, tuxedo-birds. But they evolved from a flying ancestor, were actual giants for millions of years, and some of them were even dressed a little more casually.
Instructional Video8:30
PBS

When Lizards Took Over the World

12th - Higher Ed
Lizards are incredibly widespread and diverse but it took them a long time to get to where they are now. Because they used to face some pretty stiff competition from a group of lizard look-alikes.
Instructional Video9:38
PBS

When Ichthyosaurs Led a Revolution in the Seas

12th - Higher Ed
The marine reptiles Ichthyosaurs arose after The Great Dying, which wiped out at least 90 percent of life in the oceans, changing the seas forever and triggering a new evolutionary arms race between predator and prey.
Instructional Video9:11
PBS

When Hobbits Were Real

12th - Higher Ed
Its discoverers named it Homo floresiensis, but it’s often called “the hobbit” for its short stature and oddly proportioned feet. And it’s been at the center of a major controversy in the field ever since. Was it its own species? Or was...
Instructional Video11:38
PBS

When Giant Scorpions Swarmed the Seas

12th - Higher Ed
Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes. Over time, they developed a number of adaptations--from crushing claws to flattened tails for swimming. And some of them adapted by getting so big...
Instructional Video10:09
PBS

When Giant Lemurs Ruled Madagascar

12th - Higher Ed
Just a few thousand years ago, the island of Madagascar was inhabited by giant lemurs. How did such a diverse group of primates evolve in the first place, and how did they help shape the unique environments of Madagascar? And how did...
Instructional Video9:17
PBS

When Giant Hypercarnivores Prowled Africa

12th - Higher Ed
These hyaenodonts gave the world some of its largest terrestrial, carnivorous mammals ever known. And while these behemoths were the apex predators of their time, they were no match for a changing world.
Instructional Video9:20
PBS

When Dinosaurs Chilled in the Arctic

12th - Higher Ed
All told, the Arctic in the Cretaceous Period was a rough place to live, especially in winter. And yet, the fossils of many kinds of dinosaurs have been discovered there. So how were they able to survive in this harsh environment?
Instructional Video9:08
PBS

When Crocs Thrived in the Seas

12th - Higher Ed
While dinosaurs were dominating the land, the metriorhynchids were thriving in the seas. But taking that plunge wasn’t easy because it takes a very special set of traits to fully dedicate yourself to life at sea.
Instructional Video11:10
PBS

When Bats Took Flight

12th - Higher Ed
Bats pretty much appear in the fossil record as recognizable, full-on, flying bats. And they show up on all of the continents, except Antarctica, around the same time. So where did bats come from? And which of the many weird features...
Instructional Video11:04
PBS

When Antarctica Was Green

12th - Higher Ed
Before the start of the Eocene Epoch about 56 million years ago--Antarctica was still joined to both Australia and South America. And it turns out that a lot of what we recognize about the southern hemisphere can be traced back to that...
Instructional Video8:54
PBS

What Happened To Primates In North America?

12th - Higher Ed
Early primates not only lived in North America -- our primate family tree actually originated here! So what happened to those early relatives of ours?
Instructional Video10:37
PBS

Was This Dinosaur a Cannibal?

12th - Higher Ed
Paleontologists have spent the better part of two decades debating whether Coelophysis ate its own kind. It turns out, the evidence that scientists have had to study in order to answer that question includes some of the strangest and...
Instructional Video9:25
PBS

The World Before Plate Tectonics

12th - Higher Ed
There was a time in Earth’s history that was so stable, geologists once called it the Boring Billion. But the fact is, this period was anything but boring. In fact, it set the stage for our modern version of plate tectonics - and...
Instructional Video10:12
PBS

The Triassic Reptile With "Two Faces"

12th - Higher Ed
Figuring out what this creature’s face actually looked like would take paleontologists years. But understanding this weird animal can help us shine a light on at least one way for ecosystems to bounce back from even the worst mass...
Instructional Video10:43
PBS

The Story of the Dino Stampede

12th - Higher Ed
To try to solve the puzzle of Lark Quarry, experts have turned to a special subfield of paleontology -- paleoichnology, or the study of trace fossils -- to reconstruct exactly what happened on that spot, on that day, nearly 100,000...
Instructional Video10:10
PBS

The Reign of the Hell Ants

12th - Higher Ed
This ancient species had the same six legs and segmented body that we’d recognize from an ant today. But it also had a huge, scythe-like jaw and a horn coming out of its head. This bizarre predator belonged to a group known as “hell...
Instructional Video10:41
PBS

The Mystery Behind the Biggest Bears of All Time

12th - Higher Ed
The short-faced bears turned out to be remarkably adaptable, undergoing radical changes to meet the demands of two changing continents. And yet, for reasons we don’t quite understand, their adaptability wasn’t enough to keep them from...
Instructional Video9:54
PBS

The Missing Link That Wasn’t

12th - Higher Ed
The myth of the Missing Link--the idea that there must be a specimen that partly resembles an ape but also partly resembles a modern human--is persistent. But the reality is that there is no missing link in our lineage, because that’s...
Instructional Video11:21
PBS

The Island of Shrinking Mammoths

12th - Higher Ed
The mammoths fossils found on the Channel Islands off the coast of southern California are much smaller than their relatives found on the mainland. They were so small that they came to be seen as their own species. How did they get...
Instructional Video11:41
PBS

The Island of Huge Hamsters and Giant Owls

12th - Higher Ed
Back in the late Miocene epoch, there was an island--or maybe a group of islands-- in the Mediterranean Sea that was populated with fantastic giant beasts. It’s a lesson in the very strange, but very real, powers of natural selection.