Topic: Evolution

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Current Event September 20, 2017

Why Some Animals Are Faster Than Others

Life Science Animals Evolution

Animals with long limbs and lots of muscle should be faster than other animals. In reality, even though a giraffe has much longer legs than a cheetah, it runs only about half as fast. This is because there are other factors involved in acceleration and speed of animals, such as how much energy they have to burn. Listen to learn about how new research on animal speeds can give scientists clues about the lives of prehistoric animals.

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Current Event August 16, 2017

Tricky Spiders Avoid Predators

Life Science Evolution

Animals employ all sorts of techniques to avoid becoming prey. This is a story about one species of spider that have learned to mimic the movement of ants to avoid detection by predators. Listen to learn more about the life of a professional insect impersonator.

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Science Middle School

Ice Age Evolution of Rhinos

Animals Evolution Ice Age

The Tibetan Plateau is one of the highest and coldest places on Earth. Many of the world’s tallest mountains, including Mt. Everest, is on the Tibetan Plateau. For millions of years, animals living in this region have needed to adapt to extremely cold temperatures. When an ice age took over Europe and Asia about 2.5 million years ago, this adaptation may have given animals living on the plateau an evolutionary advantage. Listen to hear about the discovery of the woolly rhino on this plateau and the new theories resulting from the discovery.

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Current Event September 22, 2016

200 Year Old Sharks

Life Science Elementary Animals Evolution

Sharks can live to be over two hundred years old, and recently a Greenland shark was found who may have lived up to 512 years. These sharks are the longest living vertebrates known to exist. They can be found swimming in the Arctic seas, where researchers are spending time studying the old creatures. Listen to the story to hear more about this fascinating species.

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Cat eyes

Current Event November 5, 2015

Animal Eye Shapes

Animals Evolution biology

If you have looked closely at the eyes of different animals, you will notice their pupils come in various shapes: round, vertical or horizontal ovals or crescents. Scientists now think they know the reason behind the shape of some animals’ pupils. There is diversity in shape because it depends on how big the animal is and whether it’s a predator or prey. It also relates to their view of the horizon. Listen to hear more about the new discovery and what it can tell us about animals and evolution.

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Naledi

Current Event September 22, 2015

A New Human-like Species

Evolution Human origins

A new species that tells us something about humans origins was recently discovered deep inside a cave in South Africa. This discovery is a mystery in many ways. How did the bones get there? What is their significance? The bones are so deep inside the cave they were almost inaccessible; scientists had to climb down a steep cliff and crawl through a cave to collect them. This new species appears to have very small brains but similar feet and hands to modern humans. It has been named Homo naledi, the newest addition to the genus Homo. Where do they fit in the story of human evolution? Listen to hear more about this remarkable discovery.

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Current Event June 18, 2015

Chimps Can Cook

Psychology Elementary Animals Evolution

Scientists have long debated when early humans learned that they could use fire to cook their food. Some believe this occurred soon after humans learned to control fire, others argue there isn’t enough evidence. A scientific study in a chimpanzee sanctuary in the Democratic Republic of the Congo has shed new light on these persistent questions. The experiment gave chimps a machine to “cook” their food and tracked their preference for cooked food and how it changed their eating behaviors. Listen to learn more about this experiment and how it plays into the debate about when early humans began to cook.

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Fish to land

Science Middle School

Fish Fossil Gives Clues to Evolution

Life Science Animals Evolution Human body

Animal species evolve and adapt over time. This ability to change lays the groundwork for human evolution. Over 375 million years ago an important transition in this lineage occurred - animals living in the sea, began living on land. This complex process happened gradually over generations and an unusual fish fossil found in the Canadian Arctic may help enhance our understanding of this progression.

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Shark survival

Science Middle School

Shark Embryos Fight for Survival

Life Science Ecosystems Evolution Oceans Reproduction

As plants and animals reproduce over time, they are able to change and adapt to ensure or improve their chances of survival. The evolutionary goal of reproduction is paired with the concept of natural selection and survival of the fittest to determine who will reproduce. From colorful plumage to size, different species use different strategies to ensure reproduction and mate selection. The sand tiger shark has a unique strategy to ensure successful reproduction - and it depends on the timing of mating. Listen to learn more about the ultimate sibling rivalry while in the womb.

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Current Event January 29, 2015

Ape Speech

Life Science Evolution

Great apes such as orangutans, chimpanzees and gorillas have long been known for their intelligence and have been thought to be early ancestors of humans. Orangutans who could whistle led scientists to discover even more fascinating orangutan vocalizations. Listen to learn more about this discovery and what it may mean for the origin of human speech.

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Current Event November 6, 2014

Sleep Clears Toxins

Life Science Health Evolution

When people don’t get enough sleep they aren’t able to think clearly, but why? A new study has uncovered what happens in the brain of animals as they sleep. These findings shed light on why people and animals need sleep and help researchers better understand the links between sleep and Alzheimers. Listen to this public radio story about why sleep is important to brain health.

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Current Event October 16, 2014

Indonesian Cave Paintings

Life Science Ancient Civilization World History I Evolution Geology

Cave painting has long been thought to be developed by early humans in Europe. A new discovery of equally old cave paintings on an island in Indonesia has upset this perspective and is pushing scientists to look even farther back to our human origins in Africa. Listen to this public radio story to hear more about the cave paintings themselves and to learn how archeologists discovered their true age.

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Toys for elephants

Science Middle School

Animal Behavior in Captivity: Toys for Elephants

Life Science Elementary Animals Evolution

Toys play an important role in children's development. They are also important to animals, even elephants. This public radio story is about how artists designed and built toys of elephants that were based on animal behavior and their environment. You’ll be inside the zoo with the elephants, hearing their joy when playing with the new toys.

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Mice morphing at warp speed

Science Middle School

Mice Evolving at Warp Speed

Life Science Animals Genetics Evolution

Changes to a neighborhood park in Illinois have affected the Northern White-Footed mice who live in the forest nearby. In this audio story, you'll hear from a scientist who is studying living mice today and comparing them to museum samples of dead mice to understand how they've changed and why. What they are finding is that the mice are growing much faster than their ancestors. Listen to learn more about their fascinating story.

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Bees and electric fields

Science Middle School

Bees and Electric Fields

Life Science Earth and Space Science Ecosystems Evolution Electricity Reproduction

Flowers have many ways of attracting bees for pollination. Bees are looking for nectar and pollen when they visit plants and flowers, as well as various colors, patterns, and shapes. Recently scientists have discovered a new way that flowers attract bees. They can sense the electric fields around flowers. Listen to hear about the natural positive charges of bees, the negative charges of flowers, and how the electric attraction works for pollination to happen.

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Nose smells 1 trillion smells

Current Event March 27, 2014

Nose Smells 1 Trillion Smells

Life Science Evolution biology Human body

The human nose is actually more powerful than your eyes because it can detect more than one trillion unique smells. Scientists believe that if the universal code behind each smell could be deciphered, you can do things like send smells over the internet.

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Bill nye debates creationist ken ham

Current Event February 6, 2014

Bill Nye Debates Creationist Ken Ham

Life Science Religion Evolution

Bill Nye, television show host and science educator, debated Ken Ham, president of the Creation Museum, on creationism versus evolution in a spirited exchange. Listen to this story to hear each side's argument.

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