Spider

[VasilyPiatkin]

Инкхредебелъ!

[BeBeAyumiReturns]

AHAHAHAHAHAHAHAHAHAHA LMAO @ THE GERMAN SPEAKING ENGLISH

[insanebkr]

Breath in now breath out

Hands up now hands down

Back up back up

Tell me what you're gonna do now

Keep rollin' rollin' rollin' rollin'

[HyruleanHero1988]

Why does the spider come to the man? Any wild animal I have ever held my hand out to has run away, spiders included.

[underbedbeast]

I disagree

It's not BECAUSE it's faster and energy saving that the spider does it.

IT's because on a downhill slope it's simply physically capable - in the same way a tire will naturally right itself and roll if hurled off a slope.

I don't doubt that the behavior is conserved because is doesn't harm the animal though!

[Sandskink]

It is indeed faster, it doubles the speed of the animal.

It is also active rolling. In the other videos you can see how the

spider roll on a flat plane and even a slope in upward direction.

The problem here is to find the balance, when is it efficient to use

this kind of locomotion. In case the animal is avoiding a predator, what counts

is to survive, thus every trick to speed up is used.

[underbedbeast]

@Sandskink

I agree with all you have written.

The behavior has obviously been conserved as it is beneficial, or at the very least NOT inhibitory (sort of a neutral evolutionary trait)

but I don't think it need to have anything to do with the spider's inventing anything.

I think what the spider does is a perfectly physical phenomena of a disk being dropped down a slope which is without obstacles.

It's merely a way of looking at the phenomena. I don't think it need be interpreted as effort.

[thebockwurst3000]

inkkrrrrredible

[T000000BI]

0:42  XD ich finds echt lol

[k1ll3rtr0n]

do a barrel roll

[Rosetich]

XD They roll XD

[elkehameln]

fucking amazing!