In this video, we will examine the precise site of fertilization and then follow the physical path of the secondary oocyte (egg) and sperm cell (spermatozoa) to fertilization.

In this episode of "From A to B", Adrian asks Brit why animals are basically getting smaller over time.

This video introduces the theory of evolution by natural selection and explores evidence for human evolution, specifically through fossils and stone tools. The speaker explains that evolution is the gradual change in characteristics over...

"Lamarck vs Darwin



An organism changes during its life in order to adapt to its environment. These changes are passed on to its

offspring.

Populations change as characteristics that allow individuals to...

The nugget explains the different theories of evolution (mutation theory, theory of natural selection, theory of inheritance) with examples.

Join Nature League and host Brit Garner as we explore life on Earth and ask questions that inspire us to marvel at all things wild.

Darwin saw evolution of new species as a slow process occurring over very long periods of time. Changes that lead to new species usually take place in small populations where genetic changes can accrue rapidly. This video will help...

This video explains the use of fossils as evidence for the theory of evolution by natural selection. It describes the three main ways in which fossils can be formed, and how they provide evidence of organisms that lived millions of years...

Many neuroscientists believe disorders of the mind will be solved when we understand the differences between the male and female brain. Yet is is frequently argued that men and women are not born but made. Are mental differences between...

Today, we look at the weird age of scientific racism. What weird extremes did it get to?

Some of evolution science's brightest minds discuss the impacts of "On the Origin of Species" in this introductory video for the National Science Foundation's new special report entitled Evolution of Evolution: 150 Years of Darwin's "On...

In this episode of "From A to B", Adrian and Brit co-create a potential future human based on both realistic and absurd adaptations.

It explains Hardy-Weinberg principle including concepts such as founder effect, bottle neck effect and Hardy-Weinberg Equilibrium.

The way we grow and develop in the womb is controlled by our DNA. Small sections of DNA, called genes, carry the code telling the body how to build itself. Usually this works fine, but sometimes those genes carry mistakes in their code....

In this episode of "From A to B", Adrian asks Brit about the relationships between intelligence, evolution, biodiversity, and tool use.

This video discusses the concept of adaptations in animals and how they help them survive in their environments. It explores examples such as the physical adaptations of sharks and the behavioral adaptations of bears and raccoons. The...

Where did humans, and all the other living things on our planet come from? This problem puzzled humans for centuries, and there have been many different theories through the ages. Then, in the mid 19th century, along came a naturalist...

The venomous mammal club is so small you’d think they’d all be closely related, but it turns out solenodons have been doing their own thing for a very long time.

This video explains the theory of evolution by natural selection as proposed by Charles Darwin and published in his book on the Origin of Species in 1859. It describes how all species of living things have evolved from simple life forms...

In this Nature League Field Trip, Brit gets a first-hand look at the challenges facing forests in the Rocky Mountains, including fires, drought, climate change, and pine beetles. Special thanks to Professor Diana Six at the University of...

On this special edition of Nature League, Brit explores nature in the context of the performing arts by showing the behind-the-scenes process of putting on a production of Disney's "The Little Mermaid". Special thanks to the Missoula...

In this Nature League Field Trip, Brit sits down with Dr. Laurie Slovarp to explore the ways that humans and non-human animals make sounds. A special thanks to Dr. Slovarp for collaborating on this Nature League Field Trip.

By now we've hopefully all seen Alien: Covenant. If you haven't, go see it right away! It's awesome, and this has spoilers. After you've seen it, you'll probably have a few questions, just as I did. The main thing that left me...

There are decisions being made right now that could have an effect on global populations for generations to come. As part of this project, we commissioned an artist to investigate some of the themes raised in the podcasts. This work of...