Topic: Diversity and Adaptation

Science

Arctic Foxes Use Good Camouflage

Animals Biology Diversity and Adaptation

Arctic foxes may be small, but they undergo powerful adaptations that help them survive in the snowy tundra, one of the planet’s most unforgiving biomes. One of their most important adaptations is the gift of camouflage: Arctic foxes’ fur changes color depending on the season. In winter, these animals grow dense white fur that keeps them warm and camouflages them in their snowy surroundings. In spring, they molt to reveal thinner, gray-brown fur to better blend in after the snow has melted away. Listen to hear more about this and other incredible adaptations of the Arctic fox.

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Science

How Animals Communicate

Animals Ecosystems Biology Diversity and Adaptation

Animals communicate through sounds, touch, visual signals, and scent, and each species has its distinct communication methods. In this audio story, Earth Ranger Emma presents examples of communication among various species, including elephants, and explains the messages and emotions that are being communicated. Listen to learn how and why animals communicate, how animal sounds reflect an environment’s health, and how people can safely respond to communications from animals.

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Science

River Otters

Animals Biology Diversity and Adaptation

North American river otters have adapted both physically and behaviorally to survive the long, cold winters of North America. This episode of Earth Rangers features an interview with a conservation zoologist about how the river otter’s physical features, behaviors, and social structures help it find the shelter and food it needs to survive, with a particular focus on the important relationship between river otters and beavers. Listen to hear about the physical and behavioral adaptations that help North American river otters thrive.

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Science

Polar Bears’ White Fur

Animals Diversity and Adaptation Light Marine Biology

Polar bears live near the North Pole, a frigid region covered by white ice and snow. The bears are protected by their thick, white fur. But what makes a polar bear’s fur white? In this episode of Earth Rangers, an expert on polar bears reveals that the hair of polar bears is actually translucent, with only small amounts of white pigment. Listen to a scientist explain what is responsible for the white color of polar bears’ fur—and why the fur sometimes changes color.

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Science

Decoding Dog DNA

Animals Genetics Evolution DNA Diversity and Adaptation

Which animal holds the title of “man’s best friend”? Of course, the answer is the dog. Dogs have lived with humans for thousands of years. Scientists’ understanding of how this came to be has changed in recent years. Additionally, scientists now study dog DNA in the hope of learning more about human DNA. Listen to hear a scientist explain the current understanding of the bond between humans and dogs, and how man’s best friend is helping to uncover mysteries hidden in human DNA.

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Science

The Science of Whiskers

Animals Diversity and Adaptation Marine Biology

Animals use their whiskers for more than just looking cute. This audio story features an interview with a scientist who studies how whiskers are used by different animals. Listen to hear how animals use whiskers to learn about the world around them and about an experiment that helps scientists learn how whiskers work.

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Science

All Kinds of Dinosaurs

Animals Evolution Diversity and Adaptation

Paleontologists learn about dinosaurs by searching for and studying fossils, which provide evidence about how a living dinosaur would have looked or acted. They use what they learn to teach others. Occasionally, paleontologists make a discovery that changes a previously accepted idea. Listen to hear more about what paleontologists do, and to learn about some of the dinosaurs that have been discovered and named.

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Science

The Rise of the Dinosaurs

Animals Climate Change Evolution Geology Diversity and Adaptation

Human beings have a long-standing fascination with dinosaurs that dates back to the discovery of the first fossils. To this day, people of all ages visit museums and fossil sites to study and learn more about these prehistoric creatures. This audio story features the answer to a seemingly simple question: how did the dinosaur age begin? Listen to hear what scientists know about the beginning of the age of dinosaurs. The story may contain a few surprises!

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Science

Colorful Butterfly Wings

Animals Ecology Diversity and Adaptation

The eye-popping colors and designs on butterfly wings are not just for show, but are an important adaptation that helps the insects fend off predators. Some butterflies have wings containing toxins, signaling danger to birds and other hungry hunters. Others fold their wings for camouflage or flutter them so the colors confuse birds giving chase. Listen to hear an insect scientist explain more about the amazing ways butterflies’ colorful wings help them survive.

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Science

Powerful Pollinators

Animals Ecosystems Plants Diversity and Adaptation Reproduction

Pollinators are animals that help plants reproduce by carrying pollen from one flower to another. Many plants that benefit from the help of pollinators bear fruit or nuts, providing healthy foods for people and other animals to eat. A variety of pollinators carry powdery pollen on their bodies from one flower to another, but bees are pollination superstars. Bees live in well-organized colonies and work quickly and productively. Their populations are in decline, however, and scientists are trying to understand why. Listen to hear how queen bees keep hives running smoothly and learn what can be done to help bees survive.

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Science

The Science of Tickling

Human Body Human Behavior Diversity and Adaptation

Does tickling have a purpose? Why are certain parts of the human body especially sensitive to tickling? Scientists believe the tickling response evolved in early humans to help them protect themselves from predators and insects. Tickling also gives scientists clues about how the brain signals other parts of the body to respond. Listen to hear more about the protective response of tickling, and learn why it is impossible to tickle yourself.

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Science

Australian Animals

Animals Diversity and Adaptation

Australia is full of diverse and unusual animal life. It is home to hundreds of different species of marsupials, which are mammals that carry their babies in pouches, along with deadly snakes, spiders, and jellyfish. Listen to hear a story about exploring the Australian outback and learn about the unique adaptations and appearances of the animals living there.

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Current Event January 2, 2020

Unlikely Animal Friends

Animals Diversity and Adaptation

A Pennsylvania animal shelter put up a horse and a goose for adoption – together. That is because, as best friends, the members of this unlikely duo cannot bear to be apart. Listen to hear a surprising story of friendship between two animals from different species and learn how their bond developed.

Update: Since this story first aired, the pair has been adopted.

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Science

Frogs and Metamorphosis

Animals Ecosystems Diversity and Adaptation

Frogs are well adapted to their environment. They absorb water and oxygen through their skin which allows them to eat and breathe underwater. They are powerful jumpers and good hunters. But perhaps their most unusual adaptation is metamorphosis, the process of changing from tadpole to frog. Metamorphosis helps frogs live successfully in both wet and semi-dry environments, vary their diets, and avoid predators. Listen to hear an animal scientist explain how metamorphosis helps frogs survive, and why they eat their own tails in the process.

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Science

Animal Superpowers

Animals Diversity and Adaptation

Animals have adapted to their environments in a wide variety of ways and developed a range of survival strategies. This audio story highlights a selection of interesting animal ”superpowers,” many of which offer ecological advantages to both predators and prey. Listen to hear about the difference between poison and venom and learn how two particularly lethal creatures compare: the box jellyfish and the golden poison frog.

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Science

Big Eared Bats

Animals Sound Diversity and Adaptation

Bats, the only flying mammal, often go unappreciated. They are a diverse species, varied in size and habitat. Their ability to hunt in the dark using echolocation, or a series of high-pitched squeaks that bounce off their prey, is a unique adaptation. This audio story highlights fascinating facts about bats: their size, where they make their homes, and how they use echolocation to hunt for dinner.

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Current Event November 6, 2019

Invasion of the Lanternflies

Environment Ecosystems Ecology Diversity and Adaptation

A Chinese insect has invaded Pennsylvania. It likely traveled on shipping containers across the Pacific ocean and when it arrived, it found bountiful food and no real predators. Now, the spotted lanternfly populations are getting out of control. With both ecosystems and businesses suffering, experts are considering drastic actions to reduce this invasive insect’s spread. Listen to learn more about the spotted lanternfly and scientists’ “crazy” solution to this bug’s growing numbers.

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Current Event October 9, 2019

Newly Discovered Leech

Health Animals Diversity and Adaptation

Would you be willing to wade into swamp water filled with bloodsucking worms? That is exactly what scientists did in order to learn more about leeches. Their efforts paid off when they discovered a brand new species of leech. Listen to hear how this recently discovered parasite uses its three jaws and why it is called a “medicinal” leech.

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Current Event October 2, 2019

Squirrels Are Listening

Environment Animals Ecosystems Language Ecology Diversity and Adaptation

Have you ever wondered what chirping birds might be saying to each other? Squirrels seem to understand communications between their feathered neighbors, and they use this information to help them stay alive. Recently, scientists decided to see just how much information “eavesdropping” squirrels gather from birds. Listen to discover what they learned and how these animals’ networks operate “almost like Facebook.”

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