The spider-goats are just normal goats with an extra gene or two that have been transposed into them. The first successful transgenic generation was male.
They had to breed the males to produce a second generation which could produce milk. In that milk was a protein that can be made into spider-silk. Weight-for-weight, spider-silk is ten times stronger than steel.
The only reason to use goats is that spiders are more difficult to control, especially when you’re trying to milk them.
“The only reason to use goats is that spiders are more difficult to control, especially when you’re trying to milk them.”
*blink, blink.*
Milking Spiders...Lol.