Spyke

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33 replies

lemmy.ml

This is just big horse propaganda to make you think you can't sneak up on a horse

88
zikzak025reply
lemmy.world

Yeah, I thought horses were famously easy to startle by approaching from behind.

42
Sasreply
piefed.blahaj.zone

I think they're famously easy to startle by being a stick on the road or literally anything they don't expect

42

My sister's horse once got startled on a ride by some large mushrooms

To be fair, they were very large mushrooms

14

Exactly, because most horses are ketamine addicts and if you sneak up behind them they think your a cop

19
lemmy.world

The rabbit's binocular butthole vision seems unlikely

42

I think this is a result of the 2D nature of then drawings, assuming the rabbit can see a up and behind their head by > 0.0 degrees then it would be marked as not a blindspot; even if they could only see giants or far off stars.

10
feddit.uk

Hang the Germans Bees have 360 degree binocular vision? That's dope.

30
Klearreply
piefed.world

Their vision is way more complicated than that. They have two different modes, one for range, the other for resolution. And it's been proven that they can't use them both at the same time. A bee might look at a flower and then repeat the examination with the other vision mode to get the details.

Note that I'm just paraphrasing what I remember reading recently and may not be completely accurate. The point is that their vision is super cool and you should all read The Mind of a Bee by Lars Chittka, because it's such a great book even if you don't particularly care about bees. You will after reading it.

They can count! And solve tasks developed for chimpanzees! And take drugs! All while being super cute.

17
lemmy.world

Wait a second, this implies that mice are predators.

24

What use is seeing behind yourself to a creature that often lives in tight tunnels.

Whereas cows and horses and such live out in the open, seeing predators from any angle is important.

A mouse and most other rodents, pop their head out from cover, then look around a bit. So binocular vision is more useful and thus favored.

Also, some rodents are predatory.

23

as others have said there are other uses for binocular vision. for example the ubiquitous forward facing eyes of primates might suggest a lineage of predators devoted exclusively to hunting, but in fact most primates are omnivorous, exhibiting only opportunistic meat eating with the majority of their diet being plants, fruit, and bugs. binocular vision is useful for depth perception during arboreal locomotion, such as brachiation and jumping between branches, with all primates being adapted to tree climbing to some degree, including humans though we are one of the most adapted to terrestrial living compared to other primates. we use our binocular vision more for fine close up work and to support powerful accurate throwing, as opposed to how cats use theirs which is for highly accurate depth perception for intercepting prey in an ambush or chase.

9

Well they do eat bugs, but the point of forward eyes is focus and accuracy. You need that for hunting, yes... but you also need it for climbing and jumping, which mice do a lot of.

9
Mac
mander.xyz

I think about this all the time:

I have a fairly large nose with a high bridge. This means less of my FOV is binocular than a person with a small nose. One of my friends is Korean and her nose is tiny. I wonder what it's like to have nearly your entire FOV be binocular...

I'm going to try to measure the angle of my binocular field.

Edit: my binocular vision angle seems to be ~93° vs the average of 114°.
This is from my measurements of ~61mm PD and nose bridge protrusion from my eye of ~29mm.

16
samus12345reply
sh.itjust.works

Most people can see their nose at all times, but their brain edits it out unless they're trying to see it.

6
lemmy.blahaj.zone

this is an awesome info graphic. really like it.

dont reeeeally get the german politics one- is it about the right peeps being blind? can be interpreted many ways.

14

Because only the left are a threat to the wealthy and powerful, and those are the people with budget for propaganda. Also, this is the case basically everywhere.

32

true true, I simply wanted to explain to Maria from where that German Politics section stems from.

15

For generations in the US, law enforcement devoted to dangerous sects and domestic terrorism refused to recognize the substantial far-right threat. By the time it was noticed by the press during the 2017 Unite the Right rally, during which the President of the United States defended the demonstration and the violence, it was too late, and the federal government was well on its way to capture by MAGA.

5

Surely horses have a bigger blind spot than that, or else the binocular area would be smaller. You're telling me an individual horse eye field of view is like 200 degrees?

4

Horses apparently have a blind spot directly behind them, and directly in front of them, but can otherwise see everything with one eye most of the time. Their fov with one eye is 350°. They also have very little depth perception since only a small part of their vision is binocular, which I would assume is part of why they get so easily spooked

6

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