Emily Graslie joins us to share the wonder of how shoulders, humble as they may be, have played a huge role in the evolution of mammals the world over. Thanks to the Museum of Comparative Zoology at Havard and The Field Museum for...

Wouldn’t it be cool to be able to point at a fossil and know that it’s the first, say, plant? Well... yeah! But it's not that easy! Scientists are always making new discoveries that throw all our old assumptions into question, but we've...

More than 90% of the plants on Earth are angiosperms, flowering plants whose seeds are enclosed inside fruit. And they’re everywhere -- but exactly how and when these plants came to be so ubiquitous is one of the most stubborn questions...

You probably don't consider algae to be super aggressive, but 66 million years ago had to turn to murder in order to survive.

Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization.

In this hilarious, whirlwind tour of the last four billion years of evolution, paleontologist and TED Fellow Lauren Sallan introduces us to some of the wildly diverse animals that roamed the prehistoric planet (from sharks with wings to...

The Triassic was full of creatures that look a lot like other, more modern species, even though they're not closely related at all. The reason for this has to do with how evolution works and with the timing of the Triassic itself: when...

Scientists tend to be careful and resistant to big claims. So evidence for the possible end of the living world took a while to be seen as such. In this episode of Crash Course History of Science, Hank talks to us about where Climate...

Paul Andersen describes pieces of evidence that Charles Darwin used to support the idea of evolution and his process of natural selection. He begins with the following evidence use in the Origin of Species; artificial selection,...

After taking you on a journey through geologic time, we've arrived at the Cenozoic Era. Most of the mammals and birds that you can think of appeared during this era but perhaps more importantly, the Cenozoic marks the rise of organisms...

With a solid understanding of biology on the small scale under our belts, it's time for the long view - for the next twelve weeks, we'll be learning how the living things that we've studied interact with and influence each other and...

Reptiles emerged from the Paleozoic as humble creatures, but in time, they grew to become some of the largest forms of life ever to stomp, swim, and soar across the planet. This Age of Reptiles was a spectacular prehistoric epic, and it...

In 2013, a treasure trove of unusual fossils were uncovered in a cave in South Africa, and researchers soon realized: these were the remains of a new species of ancient humans. Paleoanthropologist Juliet Brophy takes us inside the...

Discover how fossils help scientists to piece together evolutionary changes in early man - and how one very special fossil in Africa led historians down an exciting new path. Biology - Adaptation And Evolution - Learning Points. Fossils...

Explore the Cenozoic era, known as the Age of Mammals, which showcases the dramatic rise and diversification of mammalian life following the dinosaurs' extinction. This era, spanning from 65 million years ago to the present, has seen...

Dive into the captivating world of paleontology and explore how fossils unlock the secrets of Earth's ancient life. Discover the processes that preserve these rare treasures and understand the insights they provide into the evolution and...

Understand the complex process of fossilization and the factors that influence whether an organism becomes a fossil. Learn about the rarity of fossilization, with fewer than 10% of today's organisms likely to become fossils. Explore how...

Dive into the fascinating world of fossils and paleontology. Learn how fossils, the preserved remains and traces of ancient organisms, provide crucial insights into the history of life on Earth. Understand the role of the fossil record...

Brit looks back on our twelfth month on Nature League, when we explored the theme of extinction.

This week on Nature League, Brit Garner explores the past and present extinctions of life on Earth.

This week on Nature League, Brit and Adrian discuss the feasibility of training velociraptors in Jurassic World.

This video provides a brief overview of the evolution of life on Earth. It discusses the emergence of prokaryotic cells, the development of photosynthesis and the increase in oxygen levels on Earth. It also explores the origin and...

In this episode streamed on Oct. 24, 2019, we host our second annual NASA-themed Halloween costume and cosplay contest!

In this video, the teacher explains the concept of the fossil record and its importance in supporting the theory of evolution. By studying and piecing together millions of fossils, scientists have developed a clear picture of how life...