Please help me answer this questions about natural selection.? I'm so lost

" Icky Wicky" is a hypothetical species of mammal that lives in the tropical jungle of south America Icky Wicky has a nose that measure 6 inches in length. But fossil evident had shown that icky Wicky extinct ancestors had a nose that measured only one each in length. In accordance with the laws of Darwinian natural selection, offer a plausible scenario that might explain how icky Wicky nose evolved from short
To long. There are several plausible scenarios. Come up with one of your own, but make sure it is consistent with natural selection.

Maybe the one-inch-nosed ancestors used their noses to root around in the duff like pigs and smell out buried food such as roots and truffles. Longer, more flexible noses helped with this, and as the noses got longer they got more flexible and muscular, as with tapirs - helping to root out or pull out food items from the ground or from ponds. As the noses got longer still they could be used to manipulate more and more food items, to direct sprays of water over the back, to remove parasites, and for other useful actions; much like short-nosed elephants.

> Jos H20 wrote: "Darwinian evolution is a theory, so how are there laws inside a theory?"

A scientific theory is an explanation. A scientific law is a pattern. Patterns are often used as parts of explanations.

> Jos H20 wrote: "Ask how the evolutionary 'ancestor' survived long enough for evolutionary descendants if it was obsolete(this is something that applies to all of Darwinian evolution, not just hypotheticals--cavemen were obsolete and so died out, whereas chimps the evolutionary ancestor of Neanderthal man, aren't, yet they lived long enough for us to evolve)"

In the simplest case, a six-inch nose would be used for the same purpose as the one-inch nose, but would simply produce better results. Under those conditions, when the entire population had one-inch noses, any mutant with a slightly longer nose would have an advantage and would leave more descendants. Eventually the entire population would have slightly longer noses. Now a new mutant who had an even longer nose would have an advantage, and eventually the entire population would inherit the longer nose. At no point is the population in danger of going extinct before it can produce evolutionary descendants.