The Secret to Cheetahs’ Super Speed

Who invented the peanut butter and jelly sandwich? And how did it become one of the most famous lunches in America? In this episode, a question from listener Leila sends us on a trip through history to find out how peanut butter, jelly, and sliced bread came together to make the ...  Show more

Why do humans usually have five fingers on each hand? And what if one day, we could grow a new finger if we lost one? In this episode, a question from six-year-old listener Ayla sends us on a journey from tiny developing embryos to one of the most amazing animals on Earth: the ax ...  Show more

Adam Hart investigates the fastest land animal in the world – the cheetah! Built for high-speed chases, these spotted cats are slender, with semi-retractable claws for good grip and a flexible spine plus a long tail for balance and manoeuvrability. Cheetahs rely on speed over bru ...  Show more

Cheetah drops by to talk about life as the world's fastest land animal. Who will win when Kyle's dad challenges cheetah to a race? 

Chentle is the fastest of all the cheetahs, but she also wants to be the best climber of all the ninjas and the best flyer of all the rocket ship houses. Can she be the best at everything, and will she be happy when she leaves everyone else in her dust?  Lessons include: being m ...  Show more

Cheetahs are in trouble. With just 7,000 left in the wild in Africa, populations have been in a continuous decline due to trophy hunting, habitat loss, retaliatory killings, and dealers looking to sell them to the wealthy. National Geographic editor Rachael Bale shares what she s ...  Show more