SciShow News delves into the history of marine animals and finds that they’re getting bigger, and unlocks the secret of how cannabis creates one of its most medically useful effects.

North America used to be home to a cat so large, it may have taken down some of the biggest prey of the last Ice Age.

Paleoanthropologist Zeresenay Alemseged looks for the roots of humanity in Ethiopia's badlands. Here he talks about finding the oldest skeleton of a humanoid child -- and how Africa holds the clues to our humanity.

Jack Horner and Hank talk about the evolution of dinosaurs, what it took to become a world-famous paleontologist, genetics, and meet a live dinosaur courtesy of Jessi Knudsen Castañeda.

Talk Show all-star Kallie Moore returns to tell us about the exciting things happening over at Eons, and Jessi stops by with not one but two poke-y guests!

The gastric brooding frog lays its eggs just like any other frog -- then swallows them whole to incubate. That is, it did until it went extinct 30 years ago. Paleontologist Michael Archer makes a case to bring back the gastric brooding...

What happens when you discover a dinosaur? Paleontologist Kenneth Lacovara details his unearthing of Dreadnoughtus -- a 77-million-year-old sauropod that was as tall as a two-story house and as heavy as a jumbo jet -- and considers how...

October 11, 2017 is National Fossil Day! Kallie Moore, the collections manager at UM’s Paleontology Center, talks to Hank today about why fossils are important, and how you can get involved in this national holiday! (Psst. at 12:20,...

Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things.

For more than a hundred years, we've been studying fossils of Tyrannosaurus rex. But despite all the new insights we've gained, many of the popular images of T. rex still seem to be stuck in the past.

We've all heard the theories on why the dinosaurs died -- but how did they come to dominate the earth for so long in the first place? (Hint: it has nothing to do with their size, speed, spikes or fantastic feathers.) Travel back in time...

Scientists were able to get molecular information from 1.7 million years old teeth using a new method that could completely change how we study extinct organisms.

A 50-foot-long carnivore who hunted its prey in rivers 97 million years ago, the Spinosaurus is a "dragon from deep time." Paleontologist Nizar Ibrahim and his crew found new fossils, hidden in cliffs of the Moroccan Sahara desert, that...

During the age of dinosaurs, a massive asteroid slammed into the Earth, bringing an end to most life at the time. And thanks to new fossil evidence, we've been able to pinpoint a time of year for this event that happened millions of...

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

In a spellbinding talk, paleontologist Jack Horner tells the story of how iconoclastic thinking revealed a shocking secret about some of our most beloved dinosaurs.

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.

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...

We're not doing frontline exploratory science in a huge portion of the world -- the places governments deem too hostile or disputed. What might we be missing because we're not looking? In this fearless, unexpectedly funny talk,...

Camels are so well adapted to the desert that it's hard to imagine them living anywhere else. But what if we have them pegged all wrong? What if those big humps, feet and eyes were evolved for a different climate and a different time? In...

Strange landscapes, scorching heat and (sometimes) mad crocodiles await scientists seeking clues to evolution's genius. Paleontologist Paul Sereno talks about his surprising encounters with prehistory -- and a new way to help students...

Until recently, fossil evidence for modern humans has only gone back 200,000 years. A new discovery in Morocco and thermoluminescence dating may help extend that beyond 300,000 years. Chapters View all Homo sapiens 0:09...

Why can amphibians, fish and even some reptiles regenerate limbs, while birds and mammals can’t? Researchers think they might have found a clue on the tip of the alligator’s tail.

How do you make an archaeologist really mad, really fast? Ask her if she’s found any dinosaurs. SciShow helps you Know Your Scientists by explaining the many differences between archaeology and paleontology, and how they’re each awesome...