What is Natural Selection? Stated Clearly

Category: Nature
Download:

Natural Selection is one of the main concepts found within the theory of evolution. It was discovered by Charles Darwin and Alfred Russel Wallace though Darwin championed the idea in his book "On the Origin of Species".

Stated Clearly • 2015 • 8 episodes •

Can Science Explain the Origin of Life?

Darwin's theory of biological evolution helps us understand how simple life forms can give rise to complex lifeforms, but how did the first reproducing creatures come about? The origin of life needs its own explanation.

Nature

What is DNA and How Does it Work?

Issues of genetics and DNA are constantly cropping up in the news from food production and health, to legal cases and ethics. We hear about DNA in movies like Jurassic Park and X-men, we learn bits and pieces about it from TV shows like Dexter and and CSI, but what exactly is DNA, and how does it work?

Nature

What is a gene?

You've probably heard about GMOs or Genetically Modified Organisms but what exactly is a gene and what does it mean to modify the genes of a plant or animal?

Nature

What is Evolution?

Evolution is often considered a complex and controversial topic but it's actually a very simple concept to understand. Watch this short animation to see how evolution works.

Nature

What is Natural Selection?

Natural Selection is one of the main concepts found within the theory of evolution. It was discovered by Charles Darwin and Alfred Russel Wallace though Darwin championed the idea in his book "On the Origin of Species".

Nature

Does the Theory of Evolution Really Matter?

The discovery of biological evolution is among the most significant scientific findings of the last 200 years. It has lead us to thousands of new discoveries and is greatly expanding our understanding of the natural world.

Nature

What is the Evidence for Evolution?

Biologists teach that all living things on Earth are related. Is there any solid evidence to back this claim? Join us as we explore the facts! We start with a close look at the origin of whales from land mammals, and then touch on the origins of several other critters, including our own species.

Nature

What Was The Miller-Urey Experiment?

The Miller-Urey experiment was the first attempt to scientifically explore ideas about the origin of life. Stanley Miller simulated conditions thought be common on the ancient Earth. The purpose was to test the idea that the complex molecules of life (in this case, amino acids) could have arisen on our young planet through simple, natural chemical reactions.

2015 • Nature

You might also like

The Kalahari

While the immense ecosystem of the Kalahari is characterized by its harsh conditions, it also offers a wealth of resources to the native wildlife. From the burrows of nocturnal bat-eared foxes to the massive colonies of harvester ants, the region provides habitats for a vast array of life.

5/6Africa's Wild Horizons • 2017 • Nature

Grasslands

Grasslands cover one quarter of all land and support the vast gatherings of wildlife, but to survive here animals must endure the most hostile seasonal changes on the planet. From Asia's bizarre-looking Saiga antelope to the giant anteaters of Brazil, grassland animals have adapted in extraordinary ways to cope with these extremes. In the flooded Okavango, lions take on formidable buffalo in epic battles, on the savannah bee-eaters take advantage of elephants to help catch insects and, on the freezing northern tundra, caribou embark on great migrations shadowed by hungry Arctic wolves.

5/6Planet Earth II • 2016 • Nature

The Limits of Endurance

Left to their own devices, birds have reached almost all ends of the Earth - still, humans can do many things to help their feathered friends.

S1E10The Life of Birds • 1998 • Nature

Meat Eaters

Birds eat more than berries; this episode takes a look at birds that eat meat.

S1E4The Life of Birds • 1998 • Nature

Arctic - Far North

The Arctic region of Russia is considered the most inhospitable places to live. But polar bears, lemmings, Arctic foxes, and seals - Arctic - simply heaven. In late August, with the onset of the breeding season is going very strong male musk for traditional competitions for the right leadership in the pairing with females. Weight of an adult bull can reach 400 kilograms. In a skirmish with a rival musk ox to deliver a decisive blow running away at 40 miles per hour. Sound from the blow horns fighting males can be heard at a distance of more than one kilometer.

5/6Wild Russia • 2009 • Nature

Ferocious Fighters

The Siamese fighting fish is so aggressive it will fight its own reflection until it is exhausted. Recent research shows that the fighting behaviour varies and depends on the personality of the fish! Male kangaroos were once pitted against humans in the boxing ring, with the most impressive male kangaroos being solid blocks of muscle with a kick that can kill. Why do they fight and what skills must a winner have?

S4E6Natural Curiosities • 2018 • Nature