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Topic: bacteria
What causes body odor?
Most of us don’t need more than one whiff to identify that generally unpleasant, characteristic smell we call body odor. But it’s a surprisingly complex phenomenon, influenced by our genetic makeup, age, diet, and hyg...
Learning from leaves: Going green with artificial photosynthesis
Releasing too much carbon dioxide into the atmosphere, thanks to the burning of fossil fuels, isn't a good thing. But what if leaves can provide some ideas for how we can turn this 'nuisance gas' into useful chemicals...
Why isn’t the world covered in poop?
Each day, the animal kingdom produces roughly enough poop to match the volume of water pouring over Victoria Falls. So why isn’t the planet covered in the stuff? You can thank the humble dung beetle for eating up the ...
The Science of Skin
Between you and the rest of the world lies an interface that makes up 16% of your physical weight. This is your skin, the largest organ in your body: laid out flat, it would cover close to 1.7 square metres of ground....
How does your immune system work?
The immune system is a vast network of cells, tissues, and organs that coordinate your body’s defenses against any threats to your health. Without it, you’d be exposed to billions of bacteria, viruses, and toxins that...
Why Do These Monkeys Have Such Outrageous Noses?
Though they might look unusual to humans, proboscis monkeys are well-adapted to their tree-dwelling life in the mangrove swamps of Borneo. Their large fleshy noses are thought to create a resonating chamber for their ...
Powered by Poop at the Straus Family Creamery
Farms around the world are embracing sustainable practices and circular economy models that can help fuel and fund their farming as a part of the business. In this Flipside Science video from the California Academy of...
The Arctic vs. the Antarctic
If you're first learning about them, the Arctic and the Antarctic might be a bit confusing. Which one is which? Where are the penguins and where are the polar bears? Which is made of melting ice and which is a desert?...
Invisible Nature: The (Super Tiny) Glowing Squid
The Hawaiian bobtail squid (Euprymna scolopes) spends its days buried in sand and its nights stalking prey in the shallow waters off the coast of Hawaii. Just because the squid hunts at night, however, doesn’t mean th...
Troglobites: Strange Cave Specialists – Planet Earth
Troglobites are rare and specialized animals that only live in dark caves. In this clip from the BBC's Planet Earth: Caves, episode 4, we observe Thailand's cave angel fish, the Texas Blind Salamander, and the Belizea...
How the food you eat affects your gut – TED Ed
The bacteria in our guts can break down food the body can’t digest, produce important nutrients, regulate the immune system, and protect against harmful germs. And while we can’t control all the factors that go into m...
Seashell inspiration: Growing cement bricks with bacteria
Imagine an 8-year-old girl studying a seashell on the sand in Gulf Shores, Alabama in 1985. It's her first trip to the beach and it's a moment that will set the course of her career: “The 8-year-old version of mys...
Can Bird Poop Make Clouds?
How does bird poop potentially help to keep our climate just a wee bit cooler? In this episode of Gross Science, Anna Rothschild helps connect tens of millions of seabirds in the Arctic to 40,000 metric tons of ammoni...
Why is Lake Hillier pink?
Fly over Lake Hillier, a stunning pink lake on Middle Island, off the south coast of Western Australia. The footage was filmed by Jaimen Hudson, who captures Australia's natural wonders by drone. Lake Hillier is a...
What causes cavities?
When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes. So what causes cavities, and how can...
Evolutionary branching in action: Bacteria adapt to antibiotics
Watch E. coli bacteria encounter increasing strengths of antibiotics, the medicine that we use to fight infections or infectious diseases. A team led by Harvard Medical School's Michael Baym set up the video demonstra...
Explaining The Tree of Life
Travel millions of years through time with Sir David Attenborough as he explains The Tree of Life. Some background on the metaphor from The New York Times: In his 1859 book “On the Origin of Species,” Charles Darw...
Why do some people have seasonal allergies?
If you've ever experienced watery eyes, sneezing, runny nose, itchy throat, and other allergic reactions during springtime, or you haven't but you know someone who has, this beautifully animated TED Ed by Eleanor Nels...
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