Natures wonders: porpoise sonar (Introduction)

by David Turell , Wednesday, January 10, 2018, 15:28 (2507 days ago) @ dhw

QUOTE: "The work suggests that porpoises share some tricks with another mammal famous for echolocation: bats. “I am intrigued that there could be a way for the porpoises to change their emission pattern by compressing the forehead complex,” says Rolf Muller, a professor of mechanical engineering at Virginia Tech, who has studied bat sonar but was not involved in the porpoise study. Next to human technology, it seems bats and porpoises really are a few flaps or laps ahead."

DAVID'S comment: Nature's inventions are always better than ours. Not by chance! And Darwin evolution is all chance.

dhw: Thank you for another great post, spoilt only by your usual snipe at Darwin and totally ignoring the alternative hypothesis of cellular intelligence that I keep offering. So I suppose you think bat and porpoise echolocation, like the weaverbird’s nest, the camouflaged cuttlefish and the skull-shrinking shrew, was preprogrammed 3.8 billion years ago as an essential part of God’s plan to keep life going till he could produce the brain of Homo sapiens. Ah, where would we have been without echolocation? You snipe, I snipe.

Poor Darwin didn't know what he didn't know. Not his fault. I snipe at Darwin worshipers who still believe his whole swiss-cheese theory. Only common descent survives. His propposed mechanism of descent is in tatters.