In a remote corner of Siberia, a Russian scientist is trying to restore the ecosystem to the way it was during the last Ice Age. And while Pleistocene Park is definitely eccentric, it has implications for the future of the entire planet.

What happened to the piece of prime prehistoric real estate known as Doggerland? While a massive megatsunami might have drowned it for good, the underlying reason that it now lies under the sea may have actually been the same thing that...

While the rest of the world’s megafauna are still foundering in the anthropocene era, these two big animals have used little animal strategies to bounce back. Way back.

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...

The California condor is the biggest flying bird in North America, a title that it has held since the Late Pleistocene Epoch. It's just one example of an organism that we share the planet with today that seems lost in time, out of place...

A mysterious, large feline roamed Eurasia during the last ice age. Its fossils have been found across the continent, and it’s been the subject of ancient artwork. So what exactly were these big cats?

It’s important to us that you understand how big this beaver was. Just like modern beavers, it was semiaquatic -- it lived both on the land and in the water. The difference is that today’s beavers do a pretty special thing - one that the...

How could a body of water as big as the Mediterranean just...disappear? It would take decades and more than 1,000 research studies to even start to figure out the cause -- or causes -- of one of the greatest vanishing acts in Earth’s...

Beneath layers of rock art are drawings of animals SO strange that, for a long time, some anthropologists thought they could only have been imagined. But what if these animals really had existed, after all?

Megaloceros was one of the largest members of the deer family ever to walk the Earth. The archaeological record is full of evidence that our ancestors lived alongside and interacted with these giant mammals for millennia. But what...

It arose from rhino ancestors that were a lot smaller, but Paraceratherium would take a different evolutionary path. Believe it or not, it actually became so big that it probably got close to what scientists think might be the actual...

Hyenas weren’t always able to eat bones. In fact, only a few million years ago, they lived very different lives.

For decades, scientists have been studying the cause of the Younger Dryas, and trying to figure out if something like it could happen again. And it turns out that what caused this event is the subject of a heated debate.

Seemingly distant ecosystems, even half a world apart, are connected in surprising ways. In this special limited series, Emily Graslie and Trace Dominguez join me as we explore the universal rules of life that tie together Earth’s living...

Nowadays, we're pretty confident about how the dinosaurs died out, but there are still other extinctions throughout Earth's history, some big, some small, that remain unsolved.

Nowadays, we're pretty confident about how the dinosaurs died out, but there are still other extinctions throughout Earth's history, some big, some small, that remain unsolved.

Hank tells us about near-earth objects & primordial black holes; new developments in evolutionary genetics; a giant squid & a giant radio telescope; & answers viewer questions about disposing of nuclear waste in space.

The avocado is highly regarded by many people as delicious and nutritious, but the most extraordinary thing about avocados may be their very existence.

Thanks to strontium, oxygen, and rings in a tusk, scientists now have evidence that extinct mastodons may have participated in yearly migrations.

Sometimes it seems like the past favored large animals, but it turns out that each one on this list has a different reason for its size.

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Carboniferous & Permian periods 360 251...

Now that humans are all over the world, what do their lives look like? How were they influenced by the Ice Age that occurred at that time? How complex can hunter-gatherer society become? Let's get a closer look!

For a long time humans were hunter-gatherers. But at a certain point, human civilization began to flourish. This involved large cities of thousands of people, social stratification, trade specialization, and record-keeping. Agriculture...

The origin of Homo sapiens is in Africa. But at some point we began to leave and settle in other parts of the world. When did this happen, and why? What are the remains we have found that document this incredible journey? Let's take a look!

In this video, the teacher discusses the concept of ice ages and explains that there have been five major ice ages in Earth's history. The current period is an interglacial period within the Quaternary Ice Age, which started 2.6 million...