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Anti-Ageing: Health or Beauty?

Tue, 07 Jul 2015 13:52:48 +0000

a guest blog by Jorge I. Castillo-Quan, written for the 2015 Write About Research Competition. If you had not heard of the term anti-ageing you have not noticed spam emails, television advertising, and articles in magazines. The term anti-ageing has definitely permeated our society. Most scientists struggle to explain to their non-scientist friends what their […]

The post Anti-Ageing: Health or Beauty? appeared first on GEE Research.

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'Evolution: a can of worms'

20 February 2011

Study by GEE's Prof Max Telford et al published in Nature

Since the turn of the twentieth century, zoologists have set out from coastal marine stations at dawn to sieve peppercorn-sized worms from sea-bottom muck. These creatures, called acoels, often look like unremarkable splashes of paint when seen through a microscope. But they represent a crucial stage in animal evolution — the transition some 560 million years ago from simple anemone-like organisms to the zoo of complex creatures that populate the world today. There are about 370 species of acoel, which gets its name because it lacks a coelom — the fluid-filled body cavity that holds the internal organs in more-complex animals. Acoels also have just one hole for both eating and excreting, similar to cnidarians — a group of evolutionarily older animals containing jellyfish and sea anemones. But unlike the simpler cnidarians, which have only an inner and outer tissue layer, acoels have a third, middle tissue layer. That is the arrangement found in everything from scorpions to squids to seals, suggesting that acoels represent an intermediate form.

That hypothesis has gained considerable support in recent years, but a report published in Nature this week1 is causing scientists to rethink the storyline.  Complete article

All links:
http://www.nature.com/nature/journal/v470/n7333/full/nature09676.html

And accompanying piece

http://www.nature.com/news/2011/110209/full/470161a.html

And podcast http://www.nature.com/nature/podcast/index-2011-02-10.html

Profile of Max Telford

Page last modified on 20 feb 11 16:56