As you are walking through the Ark countryside in the Farmlands, you notice this golden egg shimmering brighter than anything else around. You approach it and notice that it glows stronger the closer you get. Is this egg speaking to you, asking something of you? Perhaps you should take it into your care...
Vello wool is pure gold of the highest fidelity and is very valuable! How is it that a mammal is able to produce a metal so pure from its body? This question is under active investigation by scientists at the Science and Research Center in Ark City. Some scientists have presented a theory: Vellos are gold because leprechauns have made them golden through some magic at the end of the rainbow.
Likely? No. Plausible? More research is needed.