• Nature’s Mood Rings: How Chameleons Really Change Color | Deep Look
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    Nature’s Mood Rings: How Chameleons Really Change Color | Deep Look

    I don’t know about you, but I thought to be chameleon-like was to be someone who could fit in anywhere. Adapt. Blend in. Turns out that is all wrong. Chameleons don’t change color to match their environment. In fact, it’s just the opposite. Their baseline is camouflage. When chameleons are relaxed, they’re mostly green. They naturally blend into their home in the forest canopy. They even mimic leaves by dancing around a little. But when they feel threatened, or annoyed, or just want to show a little swagger – that is when their color changes. They transform into living mood rings. Chameleons change color to make a statement. The faster…

  • How Mosquitoes Use Six Needles to Suck Your Blood  |  Deep Look
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    How Mosquitoes Use Six Needles to Suck Your Blood | Deep Look

    This is the deadliest animal in the world. Mosquitoes kill hundreds of thousands of people each year… the most vulnerable people: children, pregnant women… No other bite kills more humans… or makes more of us sick. So what makes a mosquito’s bite so effective? For starters, they’re motivated. Only females bite us. They need blood to make eggs… And a pool of water for their babies to hatch in. Even a piece of trash can hold enough. At first glance, it looks simple — this mosquito digging her proboscis into us. But the tools she’s using here are sophisticated. First, a protective sheath retracts – see it bending back? If…

  • You’re Not Hallucinating. That’s Just Squid Skin. | Deep Look
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    You’re Not Hallucinating. That’s Just Squid Skin. | Deep Look

    Cuttlefish… octopuses… and squid have an almost otherworldly ability to control their appearance. What makes it possible are these spots. They’re called chromatophores. They’re like tiny water balloons, filled with colored pigment. When the balloons expand, you see more pigment, more color… When they contract, the color shrinks to a tiny dot. The overall effect can be really dramatic. And for good reason. These animals don’t have protective external shells. They’re unarmored. Naked. And they aren’t great swimmers, either. Camouflage is their best defense. They have to be good at it. Octopuses can change their body position and the pattern on their skin to match rock or coral. Octopuses and…

  • Why Sea Cucumbers Are Dangerous
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    Why Sea Cucumbers Are Dangerous

    if you have even been scuba diving or snorkelling you likely came across turd-like sausages on the ocean floor – Sea cucumbers. Despite their name and their motionless lifestyle, they are animals. And although they look like a weird sea version of slugs, worms, or millipedes. they are actually closer related to us humans. Their closest relatives, however, are starfish, sea urchins and sand dollars with which they form the Echinoderms. Despite Sea cucumbers looking intrinsically harmless, they are actually quite the opposite if you aren’t careful. In this video, we will discuss why that is as well as everything else that makes these little turds interesting. Enjoy A defining…

  • Where Do Teeth Come From?
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    Where Do Teeth Come From?

    Hey smart people. Joe here. A couple of months ago, our son got his very first tooth. And then for like 3 months, he still only had one tooth. He looked adorable. But also a little bit ridiculous. Now this got me thinking… where do teeth even come from. Like…how does that happen? How do bones start growing out of our faces? So, I did some research, and what I found… I’ll never be able to unsee. And you probably won’t be able to unsee it either. Let’s check it out! [OPEN] Teeth are weird and awesome, and they grow in weird and awesome ways. So where do they come…

  • The Science of Getting (and Getting Rid of) a Tattoo
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    The Science of Getting (and Getting Rid of) a Tattoo

    Nearly one in five people in America has a tattoo. So these permanent, portable pieces of art are clearly an important part of our culture — but how do they work? What makes a tattoo permanent, and can you really get rid of it? Well, tattoos work by taking advantage of the structure of your skin, and the composition of the ink that’s used. Your skin, for starters, is made up of three main layers of cells. On top, there’s the epidermis, which is exposed to the environment. Below that, there’s the dermis, and it’s full of hair follicles and sweat glands. And below that, you find the subcutaneous layer…

  • This Is How Your Skin Holds In Bodily Fluids
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    This Is How Your Skin Holds In Bodily Fluids

    It might look like I’m leaking all the time but I’m just crying. Hey freaky leakies, Jules here for Dnews. Our skin is an amazing organ. It’s a barrier for gross things that might get into your body, it helps us sense the world around us, it keeps us from overheating and overcooling, it even synthesizes Vitamin D when UV rays hit it. But perhaps one of the most impressive things about it, to me at least, is that your skin holds all your blood and guts and mucous, and other fluids and gasses without leaking. Sure, we do stuff like sweat, but that’s a controlled response, often to heat,…

  • Why Do These Babies Eat Their Mother’s Skin?
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    Why Do These Babies Eat Their Mother’s Skin?

    You know how your parents might tell you they’d give you the shirt off their back? Well, in the animal kingdom there’s one mother who takes the expression a little too. I’m Anna Rothschild and this is Gross Science. So, there’s this group of animals called caecilians that live underground in rainforests throughout most of the world. They look kinda like a cross between a snake and an earthworm but in reality they’re neither. They’re actually amphibians, which means they’re related to frogs and salamanders. Different species of caecilians give birth in different ways. Some species are viviparous, which means they give birth to live young, while others are oviparous,…

  • Structure of the Leaf | Plant Biology | The Fuse School
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    Structure of the Leaf | Plant Biology | The Fuse School

    So we know that plants make their own food through photosynthesis. But how does a plant ;0 get together the ingredients it needs for this: sunlight, carbon dioxide and water,:) and then combine them to create glucose and oxygen? Well, that’s what leaves are for! ;[ The leaf is a plant’s food factory—and its parts work together to get the reactants;] into one place so that photosynthesis can happen.;} Let’s start with sunlight: Have a look at a leaf. The top of it is exposed to the most light—so the cells specialized for trapping light are on top. These cells are called palisade mesophyll and they’re packed full of chlorophyll,…