bilateria

"bilateria," as they're called - could possibly move in a fashion that would leave such trails.

collision detection 2009

There is no reasonable scientific controversy concerning the common descent of humans and other bilateria, including segmented worms. mynym: Are organisms capable of intelligent selection?

Assessing Causality 2008

As chordata is predated by bilateria, that would indicate that the evolutionary process is ongoing, not 'instantaneous'.

Continuation… 2008

Also, there's evidence of bilateria 40 million years before the Cambrian.

Continuation… 2008

Also, there's evidence of bilateria 40 million years before the Cambrian.

Continuation… 2008

Dolphins and whales were classified into the same group as cows and behemoths, even hierarchy of all bilateria is now quite different from what it used to be 20 years ago.

On Thursday, the Legg report will be published along with... 2009

It's worth noting that the ancestry of bilateria has always been a subject of much discussion and dispute, and the modern genetic analyses have thrown up some conflicting results.

On Thursday, the Legg report will be published along with... 2009

Thus, biologists have argued that bilateria were around before the Cambrian explosion, which sort of primed the pump for that crazily rapid diversification of bilateria into all the major animal groups we have today.

collision detection 2009

Maybe bilateria weren't kicking around for millions of years later than we suspect.

collision detection 2009

3. The latest thinking seems to suggest that the shared developmental genes may have had something to do with specifying photoreceptive cell types, rather than fully-developed or even rudimentary visual apparatus in ur-bilateria.

That's another fine mess you've made Jonathan! - The Panda's Thumb 2005