Two Bats and a Spider


– We’re looking for bats! Mario, our mammalogist, has set up a couple of mist nets
that kinda traverse the trail that we have here, so there are some running this way
and some running cross-ways. So bats will fly around kinda familiar paths at night, and oftentimes they’ll turn off their sonar if it’s, like, a “highway” that they’ve navigated before. It’s kind of like flying on autopilot. So we’re hoping to catch some of them
in some of these nets here, which will just stop them mid-flight and then we can look at them and
see what’s flying around the area. – Yeah? – Under? – Oh! That’s big! What kind of bat is it? – Wow! – So, Mario, what are you going to do with this? – So in the span of, like, two minutes
they caught two different kinds of species in the same net along the same line. One is an insect-eating bat and then the other one was a fruit-eating bat. And what they’re gonna do now is
keep them in bags for a minute, and then take them out, photograph
them before they release them. – ***kin’ nuts, man. Love it. – I was sitting over at the lunch table
earlier tonight and I saw— and the sun was going down and
I just saw the leaf litter moving, and I jumped up and
I said “What is that?!” and I thought it was either some
kind of mammal or a snake, and we put a flashlight—
or a headlamp— down a hole and saw this guy’s rear end
and have kind of been waiting all night for it to come out, and it is, like, the largest tarantula
I have ever seen, and it’s the largest tarantula that a lot of
other people have ever seen here! We think it’s a bird-eating tarantula— so the idea that a spider could kill and
consume a bird is kind of unfathomable. And it’s also been kicking off
its rear-hairs all night, kind of in defense, and I’ve been told that they have
hallucinogenic properties, so I don’t really know why I’m standing
with my face so close to its butt. So Alvaro, the guy who caught this thing, captured it after he had gotten out
of the bath, wearing his towel… He only put clothes on— – He only put clothes on to, uh—to film this. – Oh my gosh. This— He doesn’t wanna walk on me. It’s— I don’t know. If it starts cruising again— Woah, alright. Okay.
I signed myself up for that. I cannot believe this thing. – Oh, screw you, Tom! Oh, man. Is it gonna comb my hair?

100 thoughts on “Two Bats and a Spider

  1. I would like to point out, while you're in Peru, Chicago is a frozen tundra. The temperature is -2, with a windchill of -12… :,( 

  2. I think I spend too much time over the years listening to NPR on Halloween… I immediately recognized the music.

  3. I wonder if the bats actually slam into the net like birds into clean windows or if they just land on the net and investigate it. 

  4. I reeeaaally want a tarantula … but for some unbeknown reason my friends said they'd never visit me if I got one .-. THEY SO FLUFFY THOUGH :')

  5. Wow, you kept it together while it got closer and closer! What a gorgeous spider, but I think I would have to just admire from afar

  6. Emily! I got a question. If bats turn off their sonar how to they know the dimension of the place they're flying through? Do they use their other senses?

  7. I admire your composure, I'm pretty unflappable,  but no way I would have stayed so cool that close to that thing, even in front of a camera.

  8. Great video (as always!). To answer some of the spider questions, tarantulas are spiders. They are in the infraorder Mygalomorphae (a more primitive lineage of spiders). Tarantulas do not make webs but do lay silk and use silk for other purposes (e.g., lining their burrows). The tarantula in this Brainscoop is a female. If it was a male, the abdomen would be slimmer and there would be hooks under the first pair of legs. Males use the hooks to hook onto the female's fangs while mating with her.
    Paula Cushing

  9. ok you have more guts than me. I would have passed out if the spider got anywhere near me……. that thing was HUGE…… but kool….

  10. Surprised that the capture rate wasn't even higher. Some years ago I was a bird-focused TA for a field ecology class in the Ecuadorian Amazon. One evening the mist-nets were left up too late and we caught soooo many bats. Was this shot in the middle of the night? If they can detect mist nets by sonar, do they rely more on eyesight at twilight? Anyway, back then I had the job of picking the bats out of the nets (had a rabies vaccination and brought leather gloves) and was kind of pissed about it. Now I wish I hadn't been "classist" and had taken a closer look at them, and that we had a mammalogist along with us!

    Thanks for sharing these videos of the Amazon and for all you do.

  11. One must note that bat's wings are very delicate and to damage a wing while catching them is the same as dooming it to die in a few days. Notice how Mario handles them with extreme care and patience, do not try this at home and get the rabbies vaccine if you do :D.

  12. It's strange how middle sized spiders freak me out, but I find very big ones like this beautiful (you know, from the other side of the computer screen.) Thanks for a great episode <3

  13. Informative as always, Emily. Sadly, I have a debilitating case of arachnophobia when around most spiders. Glad we have you, the brave Curiosity Correspondent to showcase how some arachnids are benign to humans.

  14. "Cool bats-AAAAAHHHH SPIDER-cool, bats, pregnant bat, bats bats bats-SPIDER AAAAAAAHHHHHHHH, pretty cool spider, really but still SPIDER AHHHHHHH!"

  15. That thing is as big as your face, Emily. I would just run away screaming.
    I imagine this is why I am not you, and you are not me. Among other reasons.
    Kudos.

  16. And that, right there, is why I could never do the kind of work she does. Because I would sooner DIE than get within 100 feet of a spider that big. My skin is CRAWLING just from having watched the video. I need a shower. GAH.

  17. Love the bats- especially the one making new bats!- but OMG, I'm pretty sure I'd faint if that spider was on me.  Good for you, being so brave!

  18. I live in Arizona and had lots of biologists come to pit tag bats at our house. They set up the mesh nets and caught about 25 bats. They recorded some data as well as pit tagging and releasing them. In addition, we have a feeder set up (these are nectar-feeders) surrounded by a device which counts every time a bat comes (with a pit tag), when it comes, and which bat it is. 

  19. I love the perspective these episodes are giving me. Like, never would I have thought that bats and a spider would be so fascinating. 

  20. I don't understand why people are so scared of spiders.  That being said I was squirming in my seat the whole time.

  21. Just saw Crash Course Astronomy…and while I dearly love all the educational videos coming out of Nerdfighteria, I have to say I love yours the best. All the hosts are entertaining and quirky, but you're the one girl amongst all the science guys. I can't imagine the pressure that puts on you to represent us all-thanks for being You! 

  22. This channel is getting boring rapidly. It's been 9 months since the calf video.

    The brain scoop is becoming too "mild" since it's at Field Museum. Please do more explicit necropsy videos with lots of flesh, blood, anatomy info, sarcasm, humor and generally the things why so this channel was so great in the beginnings!

    I wanna see that bat from the inside and I want to see spider's fluids flowing around and learn awesome new stuff while watching it!

  23. Where is Mario from? Is he from the field museum, or locally based? Relatedly, how many people who worked with you on the trip were locals from the area? Also, Emily, do you speak Spanish? 

  24. That was … brave. I'm a biology student myself and I really love all kinds of crawlies, but even I would have had a huge problem with that spider. Hats off, Emily!

  25. Its amazing to see on YouTube "real life" what is only taught in schools or available in books! Double thumbs up. 

  26. I'm sorry, I'm still LMAO at the "screw you, Tom" so appropriately uttered by our girl in the Amazon forest. . |-))))

  27. Do the Bird-eater hairs really have hallucinogenic properties or is that an urban myth? I'd really like to find out! For scientific research of course! 😉

  28. T. Blondi is crazy aggressive and has a stupidly painful bite. That could have worked out really poorly for you.

  29. I didn't know Bird Eating Tarantula's were actually that calm to crawl on people. I would like to have that experience one day as I get over arachnophobia.

  30. Oh wow, I am just really impressed by you and really jealous of you. That spider is just so awesome and terrifying, both at once

  31. So chill haha I've never been afraid of spiders because NZ doesn't have any deadly spiders but I don't know if I'd be brave enough to let a bird eating tarantula wander over my body like that.

  32. Tarantulas don't like walking on people because it feels weird to them, there certain textures that Tarantulas just don't like.

  33. What a cute tarantula!! My girl is still a juvenile but she’s also super big, Goliath Birdeaters really are unique spiders!!

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