Originally Posted by
AxlF16
And.....the guppies are getting the split scimitars that look similar to wingtip fences...

Thread drift ahead!!
Very interesting though if you read Boeing's white paper on wing tips and flow effects doing research on winglets.
If you look at the new guppy wing tip from the side, it looks a lot like a dolphin, or whale's tail. I guess nature knows her stuff.