I hate to be the party pooper but the Ibex video is not real. I wish it was real but it isn't.
To the question 'Do they fall?'. Yes they do. I've found their remains at the base of cliffs and in an avalanche path. Surprisingly many of these falls are not accidental. Mt Goats can be pretty aggressive with each other. I have some fighting photos on my hard drive, I'll try to load them tonight.
Here is one of a goat that fell and survived with both horns broken.
I like to think of them as my 'Alpine Angels', but they don't always act very angelic.
Perhaps they're so good cause they have to escape those fluffy leopards...this ain't "psicobloc". Apparently they can swim well too...Action starts around 1.04.
If you had to run from those daily, would probably be jumping pretty well too.
Goats are versatile friends of man, like dogs and unlike cats
Perhaps this explains why so many people had been killed, mauled and injured by dogs, not cats. The common thing between humans, canines and bovidae, vs. felines, in that they're not the natural top of the food chain. Hence, the envy of cats. Cats are just superior.
Goat is human food, not "friend" (unless you're into eating friends). Goat meat is the most consumed meat in the world. Domestic dogs had traditionally been food animal too (fact they like not to mention a lot, endless cultures, like Sioux, etc, etc ate domestic dogs). Cat were like..."a 'friend' like that? no, thanks"
And perhaps these goat leaps are not so fake.
I don't know how authentic the vid is, but just because someone haven't seen something it doesn't mean this isn't happening (kind of like new species and new animal behaviors are being discovered all the time even now).
Goats have to be close to what their predators are in agility. I'm looking at the book "Big Cats" right now and pumas and snow leopards had been documented to make some serious leaps. Leaps of 60feet from height of 18ft, 40ft from height of 12ft, a leap over a 47ft ditch had been documented for these felines by biologists. Jumps from trees and rocks up to 60ft in height and downhill 60ft leap had been observed. Biologist Ognev had stated: "Siberian snow leopard makes unbelievable leaps and I'd never had accepted stories about them if I had not seen them myself".
One of the best areas i know of to observe both rocky mtn bighorn sheep and mtn goats is the Ruby mtns of N eastern NV. Spend a week backpacking the ruby domes areas and youll probably see some exciting animal climbers.
I have seen their hair caught on small bushes along 5.8 climbs. I was amazed to see their tracks in a light covering of snow over ice on a 5.7 slab. Also saw a baby goat leap down a 10 foot cliff short-cutting to get to his mother.