BrainStuff

More people are drinking fizzy water, both plain and in a boggling array of flavors. Learn about the different types of sparkling water and what you should watch out for in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Yes, there’s a cave shaped like a rhinoceros in Washington State. Learn how it was created and discovered in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Trees pull and store carbon, but lots of land that could support them is deforested. Learn how researchers think planting trees could help mitigate climate change in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Research shows that women are less likely to receive CPR when they need it, and fixing that might require introducing training mannequins with breasts. Learn about a project that’s trying to help in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Seashells are a pretty sight on beaches, but it turns out that they play an important role in seaside structures and ecosystems. Learn why -- and why shell poaching is a problem -- in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Humans have only very recently developed scientific ways of proving who a child's biological father is, but that didn't stop us from trying beforehand. Learn the weird history of paternity tests in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The blue whale is the largest known animal to ever grace the planet -- they may be twice as big as Megalodon was! Learn what science knows (and doesn't know) about blue whales in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

In brief, peyote is a cactus with hallucinogenic properties that's been used in religious ceremonies for centuries. Learn how it works and why it's endangered in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Most of the rest of the world uses the Celsius scale to describe temperature, but the U.S. uses Fahrenheit. Learn the origins and histories of these two scales in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The concepts of ethnicity and race are both human inventions with no basis in science, but these concepts have huge impacts on us and our world. Learn the difference between ethnicity and race in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Also called the frequency illusion or recency illusion, the Baader-Meinhof phenomenon occurs when you learn something new, then notice instances of it everywhere. Learn how it works and how it got its name in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

As human civilization encroaches on wild animals' habitats, some face extinction. Learn how researchers hope to someday use frozen DNA sample taken from zoo animals to replenish wild populations in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Without the hippocampus, our brains have serious trouble recalling and recording certain types of long-term memories. Learn how this brain structure works in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Despite its name, permafrost doesn't necessarily last forever -- and when it melts, it can have a negative effect on the environment. Learn how permafrost works (and how it preserves long-dead creatures so well) in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

These two types of professional death investigators often work together, but their jobs are usually distinct. Learn the difference in this episode of BrainStuff.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The person who discovers a new species gets to name it -- but what do 'new' and 'discover' mean here? And do all names get approved? Learn how scientific naming and taxonomy work in this episode of BrainStuff (plus, meet a fish named after Greedo). Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Goats were the original weed wackers, and they're still super effective at controlling lawns and brush today. Learn why they're gaining popularity again in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

NASA recently announced that they're sending a rotorcraft to explore Saturn's giant moon Titan from the land and air. Learn how the Dragonfly mission will be different than other otherworldly explorations in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

According to the guy who popularized a famous meditation technique for getting to sleep fast, the results are excellent. Learn its history and how it works in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Food forests are free, edible community gardens that make the most of the land by following nature's lead on design. Learn how they work and how they may help end food deserts in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Birds are the only creature in the world that have the specially evolved organ called the syrinx, and it's what lets them sing. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Tidal bores are huge, fast waves that travel the wrong way up rivers, and they only form during very specific circumstances. Learn how they work in this episode of BrainStuff.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

There's a new global arms race: to build missiles that could travel at hypersonic speeds. Learn where the technology stands and what it might be capable of in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Adding turmeric to recipes and taking supplements with it (or its active ingredient, curcumin) has become a global trend. Learn what science has to say about turmeric's medicinal properties in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Although researchers think we've found most large asteroids whose orbits bring them near Earth, some are still surprising us. Learn why -- and how we find them -- in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.