Caribou Spot Wolves Using UV Vision | Animal Super Senses | BBC Earth
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- Опубліковано 29 сер 2024
- Reindeers are often pursued by wolves in Alaska but they have a brilliant secret that allows them to see wolves coming. Taken from Animal Super Senses.
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UV is at the end of OUR spectrum, not the whole EM wave spectrum. Just saying; little things like that stand out.
Didn't know caribou could see UV.
I thought of it as the end of the spectrum that makes it through the atmosphere, the atmosphere blocks the other types of radiation beyond UV and beneath IR.
AAAAH they can see me!!!
That Dr who takes the pictures is adorable
Let those beautiful Wolves live a long life
Yeah their lifespan are only 19-20 so they actually die old fast than man when turned to 20
I wish I could have a life as adventurous as hers where you could just casually take photos of wolves close-up while not fretting at all.
Rudolph has super powers. Good argument for the existence of Santa :D
It is a very neat concept, but, wolves are not ambush predators and need the caribou to run. Wolves expose themselves to their prey.
سلام عليكم
False. They are ambush predators. They cant get close enough to their prey to "ambush" them.
The wolfs are cute ☺
looks good but are not cute are dangerous as they should be as predators
I'm a bit confused. UV is not reflected when the sun is below the horizon. UV is not reflected by the forest or other vegetation. So the only time the wolves are so "UV-visible" is in daylight, out in the open, on snow. Except for the rare white wolf, in that situation they are always very visible. So, where's the advantage?
The Advantage is as clear as Black and White!
Image if some caribou have bad eyesight like some humans do (I, for example have astigmatism), they would easily miss the wolves if it was right in front of them. However, they stick out like a black mass, and are much easier to spot.
Also, If the moon is out at night, I wonder if reflects UV light, if so the trait would be useful at night as well.
The forest/other vegetation should not block out all light and UV, so wolves should still appear clearer near trees.
I pictured Caribou walking around with those night vision headsets in war movies
Seems like the caribou have a huge advantage. How often to wolves successfully hunt a caribou?
+Florg McGlorpkin ... interesting question. That's what I'm wondering too.
only one out of ten hunts is successful :)
Wolves are successful because they re smarter and the hunt in a pack
Love Wolves...
I didn't know this. Thanks!
How can they prove that the caribou see UV light? I'm not saying they can't but how can any scientist prove this?
+Steve I think it has to do with the density of the individual Cones in an eyes Retina (which has millions of cones). Our eyes for example will only detect three main colors which is Red, Green and Blue and each color is actually a Wave form that vary in Wavelength, our cones will detect the different wavelengths through different cones and it is dependent on the density of a cone for which wavelength it will detect.
(I'm guessing here) I think the denser the cones, the shorter the wavelength that can be detected and scientists will be able to get the density of the cone by looking under the microscope and depending on the density, they'll match it up with a wavelength.
Look up "Cones in the eye" and "Electromagnetic spectrum" if you want to get the proper facts and formal definitions :)
+RigorGames thank you, I will look into this further!
+Steve Do some research! I'm sure biologists have done a ton of work on this! :)
Fun Fact: Human retinas can also see UV light. We have three cone cell types for Red, Green and Blue, but our "Blue" cones can also see some UV. The reason we can't see this extra UV is because the lens inside our eye blocks this UV light. People that have their lens removed will see the world in brighter blues from the extra UV, but I imagine this might also cause damage to your retinas over the long term.
Research :^)
2021...dont why im out here watching videos from 9 years ago...
Beautiful wolf I love this animal
Yes it's a beautiful animal but its viscous and a killing machine
@@longshot3120 Are non-vegans vicious killing machines? We both eat meat. Wolves are not vicious killing machines, because most of us eat meat as much as they do. Humans are much more cruel than any other animal, have you seen our mass production farms? How many animals die prematurely and live in cages? I'm not personally vegetarian, but when you're calling wolves this it makes me quite annoyed.
what I want to know is how do we know that rain deer can see uv light?
+Inayet Hadi
it has to do with the types of rods and cones found in the back of their eyes.
"Their cornea lets ultraviolet light pass into the eye. They don't have specialized rods or cones like other animals, but their normal cells respond to low intensity stimulation."
+Inayet Hadi By using science to learn about animals and anatomy.
+Justin Naujoks😙😍😍😝😜😝😜🐑🐭🐑🐽🐷🐷🐭🎅🎄🎄🎅⛪🏬⛪⛪⛪⛪
Dissection
Where's Araska?
Love ❤️
we Dene hunt caribou and can even get close at times. does that mean we Natives are invisible to caribou 0_o LOL
Isn't BBC from Europe? Why not use reindeer ?
are reindeer and caribou really the same though?
No. Reindeer are much bigger and are further north
Thanks guys I taught I knew so much about life and the animal kingdom until I saw this video
@Silent Breeze I love meat and ya humans r cruel..and u gotta understand we as farmers need to feed the world...everybody eats meat...and wolfs r killing machines in a impressive way...there very smart
Hi
Hi.
.
.
@@pedrocampos691 .
Has any caribou told you how it sees?
Kangaroos
🐺🇷🇸🐺🇷🇸🐺🐺🐺🐺🐺🐺
I wonder why they developed UV vision over IR vision, IR would work at night too, as anything hot would radiate its own IR, and wolves are pretty hot compared to snow.
They didn't develop anything. It's just survived those who can see in UV.
And you would be seeing this IR from eyeballs that were also hot. So you end up with a lot of interference from your detection system.
Allah huwe akbar 😢😢😢😢
hhmmm
“Snow reflect ultra violet light”
Then they say...
“Objects that reflects UV light will be white. Objects that absorb light will be black.”
Wait, I just realized they didn’t mean the snow will look violet(purple) in the beginning. They just meant UV.
UV = ultra violet.
Third.
sup reddit