Season 47
(2020)
Cast
Episodes
Polar Extremes 0.0
February 5, 2020
Following a trail of fossils found in all the wrong places–beech trees in Antarctica, redwoods and hippo-like mammals i…
Dog Tales 8.0
February 12, 2020
Dogs have long been dependable companions by our sides. But it wasn’t always that way, and a look at their closest livi…
Cat Tales 7.0
February 19, 2020
Worshipped as a goddess, condemned as satanic, and spun into a stunning array of breeds, cats have long fascinated huma…
Mysteries of Sleep 0.0
February 26, 2020
From fruit flies to whales, virtually every animal sleeps. But why? Why do we need to spend nearly a third of our lives…
Cuba's Cancer Hope 0.0
April 1, 2020
When the U.S. trade embargo left Cuba isolated from medical resources, Cuban scientists were forced to get creative. No…
The Truth About Fat 0.0
April 8, 2020
The mysteries of fat and its role in hormone production, hunger and pregnancy.
Decoding COVID-19 0.0
May 13, 2020
The coronavirus SARS-CoV-2 has upended life as we know it in a matter of months. But at the same time, an unprecedented…
Eagle Power 0.0
May 20, 2020
Eagles dominate the skies. But what makes these predators so special? Researchers study one special bird—and stunning u…
Human Nature / Gene-Editing Reality Check 0.0
September 9, 2020
With an extraordinary new technology called CRISPR, we can now edit DNA—including human DNA. But how far should we go? …
Secret Mind of Slime 0.0
September 16, 2020
Scientists investigate the bizarre “intelligence” of slime molds, which appear to learn and make decisions—without a br…
A to Z: The First Alphabet 0.0
September 23, 2020
Writing shaped our world and the rise of human knowledge, from the trading of goods to tales of ancient goddesses and k…
A to Z: How Writing Changed the World 0.0
September 30, 2020
Just as writing changed the course of human history, the evolution of paper and printing revolutionized the spread of i…
Nature's Fear Factor 0.0
October 14, 2020
For animals in Mozambique’s Gorongosa National Park, the normal balance of competition and predation was upended when a…
Touching the Asteroid 0.0
October 21, 2020
In October 2020, a NASA spacecraft called OSIRIS-REx attempts to reach out and grab a piece of an asteroid named Bennu …
Can We Cool the Planet? 0.0
October 28, 2020
As global temperatures continue to rise, scientists are wondering if we need solutions beyond reducing emissions. Enter…
Saving Notre Dame 0.0
November 25, 2020
When the roof of Notre Dame Cathedral erupted in flames in April of 2019, firefighters battled for nine grueling hours …