Wings of Wonders .A Biological Dual Engine .

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00:00You think a 100 million dollar fighter jet is impressive?

00:03Meet the hummingbird. It's an animal that literally breaks the rules of flight.

00:07It's the only bird on earth that can truly hover, fly backward, and even fly upside down.

00:12Its wings aren't just flapping, they're ripping through the air, beating up to 80 times per second.

00:18That hum you hear? That's the sound of it violating the laws of physics.

00:22Here's its cheat code. Other birds only get lift on the downstroke.

00:26The hummingbird's shoulder is a universal joint, allowing its wings to rotate in a figure eight.

00:31This means it gets lift on the downstroke and the upstroke.

00:35It's a biological dual engine.

00:37To power this, its body is a living furnace.

00:40Its heart rate is 1,200 beats per minute.

00:43Let me repeat that. Not 120, 1,200.

00:48Your heart beats 70 times a minute.

00:50Its heart beats 20 times a second.

00:52It has the fastest metabolism of any warm-blooded animal on earth, period.

00:57The cost of this superpower?

00:59It's constantly starving.

01:00It has to eat its own body weight in nectar every single day.

01:04If a hummingbird stops eating for just a few hours, it dies.

01:08So how does it survive the night?

01:09It has a built-in emergency shutdown called torpor.

01:13It's basically a mini hibernation.

01:14It drops its metabolism by 95%, slowing its heart to a crawl, just to survive until breakfast.

01:21And it's fast. It can cruise at over 30 miles per hour.

01:24But during its courtship, flex, the male will dive from 100 feet, hitting over 50 miles per hour,

01:31just to stop on a dime and hover in front of the female.

01:34So when you see a hummingbird hovering at a flower, it's not resting.

01:38It's a high-performance machine in a state of controlled crisis.

01:42Its wings are blurring, its heart is redlining, and its tail is working overtime as a rudder,

01:47just to stay stable.

01:48It's not a bird.

01:49It's a miracle of engineering.

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