Narwhals: Unicorns of the sea?

Narwhals: Unicorns of the sea?

Narwhals are whales, and super cool ones at that. But that cool thing coming out of their heads is a tusk, not a horn. Which means it’s a tooth! And it’s the only known spiral tooth to boot! In this episode, we learn all about narwhals (what that tusk is for and how they’re connected to the myth of the unicorn) and the evolution of teeth (from scale-like nubbins to the versatile chompers we have today). Plus our Moment of Um explores whether or not water has a taste. Today’s episode is sponsored by KiwiCo (kiwico.com/brainson), Khan Academy Kids (khan.co/freekidsapp) and iD Tech (idtech.com/brains). Brains On is a non-profit public radio podcast. You can support Brains On at brainson.org/fans. See omnystudio.com/listener for privacy information.

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Avsnitt(419)

Hoax Hunters take on the Fresno Nightcrawler

Hoax Hunters take on the Fresno Nightcrawler

Marc and Sanden are back as the Hoax Hunters! This time they look at the case of the Fresno Nightcrawler. In 2007 a man’s security camera recorded something strange outside his house. It looked like s...

21 Juli 0s

Why are brains so squishy?

Why are brains so squishy?

Our brains are amazing machines, but they are also very delicate. We have to wear helmets when we bike, skate, or do other activities where we might bang our skulls. Why is the brain so sensitive? Tur...

14 Juli 34min

How do oysters make pearls?

How do oysters make pearls?

Pearls are shiny little things that look great on a bracelet or necklace. They’re made by shell-dwelling creatures called oysters, but how? Dive in as Molly and co-host Katherine explore the underwate...

7 Juli 34min

Why do mosquitoes bite?

Why do mosquitoes bite?

In this episode, we're tackling all the mosquito questions that have been bugging our listeners. Why do they bite? Why do the bites itch? Is scratching them a good idea? Why do some people seem to be ...

30 Juni 28min

How do lightbulbs work?

How do lightbulbs work?

We use lightbulbs everyday, but how often do we stop to think about how they work? These genius little inventions are packed with cool science. Molly and co-host Maya will explain how they work step b...

23 Juni 29min

Crystals: More than just shiny rocks

Crystals: More than just shiny rocks

This episode shines a light on crystals, and they’re sparkling right back at us! We’ll zoom way in on a diamond to understand the structure that makes crystals special, and hear about some unexpected ...

16 Juni 35min

Brains On Presents: Smash Boom Best - Slime vs Slinkies

Brains On Presents: Smash Boom Best - Slime vs Slinkies

We will be back next week with a new episode! This week we have an episode from our sister show Smash Boom Best: Slime vs Slinkies!Set out these two playthings on a table and see which one your kid gr...

9 Juni 40min

Why do we like the number 100?

Why do we like the number 100?

As Brains On fast approaches 400 episodes, we wanted to re-visit this one. Not only is it our milestone episode 100, but our pal Gungador goes from Most Epic Fighting Battle Realm to a much more chall...

2 Juni 42min

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