Perfect Poise, Perfect Life
Bring your body into balance and revolutionise your life
By Noel Kingsley
Publisher Hodder Mobius
AVAILABLE HERE
« Teach a man to fish... | Main | Another chance »
Ocean to Tetrapod to Ipod
The first fish finger has been discovered and surprise, surprise it's not from Captain Birdseye. Tiktaalik fossils from 383 million years ago in Arctic Canada are thought to be the missing link between ocean fish and mammals as they had scales, fins and also wrists, fingers and a neck like land animals. They bridge the gap between Sacopterygians which were lobed-fined fish and the Tetrapod or limb-ed vertebrates. And the development from the Tetrapod to the Ipod took just another 360 million years.
Looking at my own hand here as I type, it's clear that the webbing between our fingers, which is similar to between our toes is not a million leaps away from that of frogs and seabirds. Think I'll go for a swim later...
This chart shows differences in a variety of creatures that lived roughly 360 million to 410 million years ago. The sequence is arranged in a way that shows how fins might have evolved into limbs.
