Can you sex goats?

ADF&G has a great quiz, testing your ability to tell male mountain goats from female mountain goats. I'm no goat/sheep hunter myself, so I did miserably. How well did you?

Here's a question I have: How often do mountain goats fall to their death? I'm very curious to know. Think about it: there's no reason that mountain goats are immune to stepping on loose rock near big drops. It's not as if they can fly if they misstep. Or, rather, they would fly, but they would have an uncontrolled landing. And if monkeys fall from trees, why not goats slip from rocks?

I'm very curious.