yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Yosemite's Strangest Love Story | America's National Parks | National Geographic


2m read
·Nov 10, 2024

NARRATOR: From Yosemite's iconic green valley to its secret eastern edge. The little rain reaches this arid landscape, blocked by over 13,000 feet of solid Sierra Nevada. An alien desert-like habitat, home to one of the park's strangest females: a praying mantis.

It's the last days of summer in Yosemite, and she's coming to the end of her seasonal feeding spree. Her main weapons are prominent front legs lined with shark tooth-shaped spikes. The praying mantis is the only insect on the planet with three-dimensional vision. Her lightning fast strike clocks at 1/20 of a second. But this is only a cricket drumstick appetizer.

She releases a concoction of alluring pheromones into the air. Oh do mantis. One lucky guy picks up the signal. Maybe some eye contact can smooth out this first date, or maybe not. In exchange for his would-be wooing, the Casanova is attacked. It's impossible for him to free himself. The male's head is ripped off—the female's final main course.

It's an abrupt end to a first date. Or is it? The decapitated male is still moving. The headless torso of the male praying mantis is still controlled by nerves in the abdomen. In a final mating act, his body completes what his head started. The female, on the other hand, is busy finishing dinner.

She'll mate with multiple males each breeding season. Not all of them will suffer the same fate. But the males who are decapitated may father the most eggs. The ultimate sacrifice in a unique Yosemite love story.

[BIRDS CHIRPING]

[MUSIC PLAYING]

More Articles

View All
Creativity break: how do you apply creativity to biology? | High school biology | Khan Academy
[Music] [Music] One question that people ask me is, how do I apply creativity to the presentations that I give? My secret sauce is to come up with a visual image that anybody—I don’t care if you’re an adult, whether you’re a fifth grader or second grader…
A Father at War | The Long Road Home 360
[Music] I’m Sergeant Benjamin Harris, United States Army infantryman. I was 26; my daughter was born two months before we deployed. It’s in those first couple days certain details I can remember very clearly, and then certain things that I would think I r…
Activation and inhibition of signal transduction pathways | AP Biology | Khan Academy
What we have depicted here is a signal transduction pathway that gets started with the cholera toxin. We’ve talked about signal transduction pathways in other videos, but it’s really this idea that you would have molecules outside of the cell that would i…
A Dry Valley Mystery | Continent 7: Antarctica
Scott Bay’s choppers will be here to pick up the team in 15 hours. It’s an early start this morning, and we’ve got to break the camp down, but not everyone is ready. Yes, I mean science in the Dry Valleys. He’s gone really well; we’ve knocked out pretty …
Snagging a Stag | Primal Survivor
These Sami reindeer are semi. While they have sharp antlers, a swift kick, and can pull a 250-pound load with ease, it takes a lot of strength and skill to pull in a reindeer without injuring yourself or the animal. I’ve managed to separate this stag from…
Multiplying monomials | Algebra I | Khan Academy
All right, in this video we’re going to be multiplying monomials together. Let me give you an example of a monomial: 4 x squared. That’s a monomial. Now, why? Well, mono means one, which refers to the number of terms. So this 4x squared, this is all one t…