Thanks Bob.
After I've caught fish on a lure - especially one that few anglers have seen, I wonder what was it about the lure that provoked a fish to attack it? Each lure shown has its own story, meaning, it does something that describes it.

Example 1: the lure at the top was a copy of an Uncle Josh Pork Frog trailer that was one of the most bought skirted, bass-jig trailers long before plastic trailers became popular. Different reasons given for the pork skin trailer's success were:
1. being that it was salty from the perservative in the glass jar it was kept in, salt supposedly made bass hold on longer;
2. the skirted jig + trailer simulated crawfish
Here's a picture of the original pork frog:

Not exactly a crawfish in shape or color, but I used it faithfully for years.

Truth based on shape and action:
1. the silicone or living rubber skirt on the jighead flair & pulsate when jigged;
2. the two thin, flat triangular tails flap slightly when the jig is moved
3. the flat wide body gives fish an easy target to zero in on

Then I asked myself: would the trailer work by itself without being on a skirted jig? It did, the first time I cast it on a light jighead! It caught everything. Why? IMO, reasons 1-3 are the only logical ones I can think of with after discounting reasons 1 & 2 given per fishing media sources.

Example 2: The wacky rigged Senko has caught millions of bass since it was first introduced decades ago. Why?
The Senko is a soft, weighted tapered stick shape. The angler casts it and the lure has its own action: wobbling legs on either side of the hook rigged in the center. So, I asked myself: why not make small soft lures that are either similar in shape (stick) or that have thin legs on either side of a body. The plastic isn't weighted so a jighead is necessary. Great action on the drop and fish jumped all over it thanks to the Senko's action concept.

There are many more action/shape stories, but you get the idea.