• LIVING NIGHTMARE!
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    LIVING NIGHTMARE!

    – This never ends well for the people that go out with cameras and flashlights, does it? – [Mark] What do you see? Those are eyes. – It could be a sasquatch. (tribal music) Do you guys wanna see something really scary? – [Mark] No? – Yes, you do. Come on, let’s go down to the river. – [Mario] I don’t know if this is such a good idea. – Oh, I’m about to show you guys the scariest thing you have ever seen. I’ve been thinking about this all day. I found one earlier, but at night it’ll be a whole lot better. – [Mark] So where are you…

  • Night of the Deadly Creatures
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    Night of the Deadly Creatures

    – Wooo, look at that. – [Mark] Whoah man, that is a long snake. – [Coyote] Now this is a nocturnal and an arboreal species, which means that they’re out in the trees at night hunting for their prey. Now they (vinyl record scratching) Oh man. – Oh jeez. (tropical adventurous music) – What’s going on Coyote pack? Right now, we are on the Caribbean side of Costa Rica, and for the past two weeks, we’ve been staying at the Costa Rican Amphibian Research Center Reserve. Just across this bridge right here is the rainforest. And every single night we’ve been out there looking for animals. Now the one thing…

  • 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…

  • So … Sometimes Fireflies Eat Other Fireflies | Deep Look
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    So … Sometimes Fireflies Eat Other Fireflies | Deep Look

    If you think there’s something romantic about fireflies glowing on a warm summer night… You’d be right. But what you don’t see, is the dark side of this luminous display. Firefly flashes are a secret code, a language of light. The light comes from a masterful bit of chemistry. A bioluminescent reaction that generates light but no heat. So what are they saying? Well, males on the wing are advertising themselves to females with a bit of sexy skywriting. Take the common Eastern firefly. His signature move? A fishhook-shaped maneuver. Which is why his species is sometimes called the “Big Dipper.” Her reply is more subtle: a single, slow pulse…