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

Huge Whip Spiders Wear Nail Polish for Science | Expedition Raw


2m read
·Nov 11, 2024

You want me to catch this one?

We're looking for wig spiders tonight because they have a remarkable navigational ability. Yeah, yeah, yeah, you got them. They come back each night faithfully to the same little refuge site and this large tree that you've seen a little bit of. If you don't get it, they usually disappear into the tree crevices and that animal is lost for the night.

No, no, very aggressive. They can draw blood, and you got to tough it. Once you have the animal, you're not going to drop it just because it's pinching you.

We take this animal right now. All we do is use superglue, and we're going to put this radio transmitter on. Don't speed on that. Going to take it about 10 m away to a place it's never been to before and see how successful it is navigating back to the tree where we found it.

You generally see them progressively moving closer to the home tree over a series of days. There's a guy that was away 10 m, and he's pretty much exactly in the same spot when we captured it. It's pretty flippin' remarkable. It becomes reminiscent of the kinds of things that homing pigeons do and sea turtles do.

What sensory information are they using? Are they smelling their way back? Are they seeing their way back? Are they hearing their way back?

So, for some of the animals that we've captured, we're going to cover the tips of their antenna form legs with nail polish. And the question is, do you get back? They can't. It implies that smell and touch information is crucial for these animals to figure out how they're going to get their way back home.

It's really, really exciting to look at how a true kind of navigational system can evolve with a relatively simple nervous system that these guys have.

This is the big guy, right?

More Articles

View All
Overview of Ancient Mesopotamia
I want to do now is start thinking about ancient civilizations, and we’re going to start with Mesopotamia. Mesopotamia, the word, is literally referring to the fact that this region is, for the most part, between two rivers. You have the Tigris River and …
Is Sargassum Attracting Sharks to Galveston? | SharkFest
NARRATOR: Bull sharks bite with more force, pound for pound, than any other species of large shark. But in Texas waters, they don’t frequently turn their teeth on humans. That is, until 2010—three attacks in less than a year. The safety and livelihood of …
Ray Dalio & Bill Belichick on Building Great Teams
Okay, well, this looks comfortable. Good! It’s good to have you. Glad you’re comfortable, right? Thank you for writing this book. I can’t tell you how much I enjoy this—this, uh, very educational—and the way that you put your story principles into words i…
Shipwreck From Explorer Vasco da Gama's Fleet Discovered | National Geographic
[Music] [Music] A storm from the north wrecked two of the ships, the Soj brothers’ vessels, onto a reef. We were the first people to discover this shipwreck, and the reason being because it was such a remote part of the world. It’s an island in the Indian…
Lecture 9 - How to Raise Money (Marc Andreessen, Ron Conway, Parker Conrad)
Um, but I want to start with a question for Mark and Ron, which is by far the number one question. Probably be a link answer: what do you guys decide to invest in—a founder or a company? Neither of you: no, no, no, no, you first. Um, well, we have a sli…
Worked example: differentiating polar functions | AP Calculus BC | Khan Academy
Let r be the function given by r if theta is equal to three theta sine theta for theta is between zero and two pi, including zero and two pi. The graph of r in polar coordinates consists of two loops, as shown in the figure above. So let’s think about wh…