Lactose intolerance is quite common, especially in Asian countries. The reason behind this is gene-culture co-evolution. Lactose intolerance is the inability to digest lactose in milk because they lack the lactase enzyme. A 1981 study...

As children, we learn almost entirely through observation and mimicking. From laughter and walking to the use of objects and empathy, we often create the behavior of our lives based on what we witness in others. The same thing is true...

Mexico's Dia de Muertos is a celebration of the connection between life and death with music, colour, and food. Let's find out how such a unique holiday came into being.

In 1963, in Turkey, a cave painting was discovered that had been drawn around 6200 BC in Catal Hyük in Anatolia. This painting illustrated a town with streets, houses, and a volcano. Would you call this a cave painting or an attempt at...

The Ghost Dance was a spiritual movement amongst Native Americans that lived in the American west. It began at the end of the 19th century and had a massive influence for the Natives living in the area. It emerged at the time of the last...

Our modern diet is rife with specific dietary deficiencies. This explores just 5 discrepancies between our diet, and that of our primal ancestors. Fig Leaf Rag Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By...

According to phylogenetic classification, a "reptile" is any organism descended from the original group of reptiles, which includes birds. Thus, birds are reptiles by this method of classification, much like everything that descended...

The Earth is billions of years old and was once a very hostile place. Eventually, a single cell was formed that evolved and reproduced. What conditions produced this first life on Earth? Biology - Cells And DNA - Learning Points....

An introduction to the ‘mammal-like reptiles’ that walked the Earth millions of years before the dinosaurs – and from which all modern-day mammals would eventually evolve. Biology - Animal Kingdom - Learning Points. Early reptiles split...

Why was the development of early agricultural techniques a crucial evolutionary step? Discover how early farming techniques transformed Neanderthal Man. Biology - Adaptation And Evolution - Learning Points. The last ice age ended 12,000...

True or false… the ancestors of whales used to have legs?
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Whales are mammals.


Whales...

Learn about China's ancient past and the rise and fall of the Han Dynasty.

Learn about the Mexican priest and revolutionary, who on the "Grito de Delores" ("Cry of Delores") helped free Mexico from Spanish rule.

According to phylogenetic classification, a "reptile" is any organism descended from the original group of reptiles, which includes birds. Thus, birds are reptiles by this method of classification, much like everything that descended...

Learn about the traditional Mexican holiday of Dia de los Muertos where loved ones who have passed are remembered by their relatives.

Dive into the evolutionary backstory of wisdom teeth and the coccyx, understanding their origins and current utility. The segment explains why these remnants from our evolutionary past persist and what function, if any, they serve...

Delve into the fascinating production of everyday paper products like toilet paper and paper towels. Understand how they're engineered for specific purposes like softness and absorbency, using different types of cellulose fibers and...

Discover how our ancestors minimized food waste long before modern preservation techniques, with a journey to Chamerolles castle in the Loiret. Join Mac Lesggy and medieval cuisine specialist Fabian Muller as they explore traditional...

Mr. Griot provides information about the characteristics of mythological stories as he shares the myth "Pandora."

As children, we learn almost entirely through observation and mimicking. From laughter and walking to the use of objects and empathy, we often create the behavior of our lives based on what we witness in others. The same thing is true...

Words don't pop up fully formed... they evolve over thousands of years. What can we learn about our relationship to monsters by tracking the word down into the distant past?

The fairies of Celtic traditions trace their origin back to an ancient race of otherworldly royalty - the Tuatha Dé Danann. As fairy nobility, the Tuatha Dé Danann were alternatively seen as gods, monsters, demons, and even the real...

Dr. Zarka shows how this wailing female ghost connects to the very real Irish tradition of keening— a rhythmic wailing and mourning performed by women as part of the death ritual. Tune in to see how fact and fiction combine to create a...

Discover the deep spiritual purpose behind the Hopi cross country program and the legacy of their 27 state titles.