In the past decade, astronomers have discovered interstellar objects, including a 2014 meteor that collided with Earth and 'Oumuamua in 2017. These objects, moving too fast to be bound by the Sun's gravity, have sparked questions about...

There are some geological areas on the planet that scientists still don't understand. For most things it's pretty clear—combine a volcanic eruption a dash of erosion, and boom, you’ve got a striking cliff! But not all the features on...

In 2013, an Ebola outbreak began in Guinea. The country had no formal response system and the outbreak became the largest Ebola epidemic in recorded history. Guinea then completely overhauled their response system, and were able to...

When human rights advocate Manu Peni returned to Papua New Guinea from abroad, he built a home for himself using modern techniques -- and promptly learned a harsh lesson on how the newest ideas aren't always the best ideas. Peni calls...

Explaining strange Earth geology is often straightforward — combine a volcanic eruption a dash of erosion, and boom, you’ve got a striking cliff! But not all the features on this planet are so easy to figure out. From the ground randomly...

Ron Gutman reviews a raft of studies about smiling, and reveals some surprising results. Did you know your smile can be a predictor of how long you'll live -- and that a simple smile has a measurable effect on your overall well-being?...

A fish with eerily human-like teeth was caught in a New Jersey lake. And scientists have learned to speak Bird!

When ebola broke out in March 2014, Pardis Sabeti and her team got to work sequencing the virus's genome, learning how it mutated and spread. Sabeti immediately released her research online, so virus trackers and scientists from around...

This week, science explains the chemical love-connection we share with our dogs, and how some of the most isolated populations of people in the world are different on the inside.

Howcast - Guinea pigs often squeak with joy when their owners enter a room. How can you resist such welcoming pets?

Howcast - Learn how to play the djembe kuku rhythm 1st accompaniment from the musicians at Wula Drum in this Howcast video.

Howcast - Learn how to play African shakers from the musicians at Wula Drum in this Howcast video.

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Find out why people in Australia like seeing these little guys in their backyards.

Meet Floyd the blue-tongued skink and learn all about these incredible creatures.

Did you know Senegal was once in two separate federations? 

Papua New Guinea:"Finally, we will go to one of the largest islands in the world, where a country rich in cultural diversity awaits us, Papua in New Guinea. An island, full of mystery and wonder and one of the least explored places to...

Polynesia and the South Pacific island countries are incredibly beautiful. And these islands are often thought of first when travelers begin yearning for a tropical holiday. Unfortunately, these very same islands are also facing an...

An introduction to the echidna - one of the world's few egg-laying mammals. Find out what it looks like, where it lives, and what it eats. Biology - Animal Kingdom - Learning Points. Egg-laying mammals are called monotremes. The echidna...

The story of Amelia Earhart as told by the contents of her bag?! I wanted to find a personable and intimate way of discussing my inspirational female icons on Youtube. So, I've taken the YouTube classic "What's in my Bag" tag and...

Learn about the countries that make up the continent of Oceania.

African Muslim Yarrow Mamout rose from a life of slavery to become a popular businessman in Washington, D.C. Artist Charles Willson Peale painted his portrait and discovered his incredible story.

Sing the ABC using countries from around the world that start with almost all of the 26 letters of the alphabet -- can you name other countries that start with each of the letters besides the ones in the video?

Countries of Africa | Continents of the World