Anatomical

... linking the cambrian fossils Gouild note The Cambrian Explosion occurred in a geological moment, and we have reason to think that all major anatomical designs may have made their evolutionary appearance at that time. ...not only the phylum Chordata itself, but also all its major divisions, ...

See entire post

... 1872, pp. 316-317.) Today, Gould writes, "The Cambrian Explosion occurred in a geological moment, and we have reason to think that all major anatomical designs may have made their evolutionary appearance at that time. ...not only the phylum Chordata itself, but also all its major divisions, ...

See entire post

... 1872, pp. 316-317.) Today, Gould writes, "The Cambrian Explosion occurred in a geological moment, and we have reason to think that all major anatomical designs may have made their evolutionary appearance at that time. ...not only the phylum Chordata itself, but also all its major divisions, ...

See entire post

... going in the opposite direction, in a much less realistic but more entertaining way. I've been adding "special" traits that could be anatomical or behavioral adaptations like "climber", eyes on front, eyes on side, social, loner, etc. Of course this is highly unrealistic ...

See entire post

... the possibility of such a mechanism has not been completely ruled out. Several classes of adenosine receptors have been described, with different anatomical distributions. A1 receptors are widely distributed, and act to inhibit calcium uptake. A2A receptors are heavily concentrated in the basal ...

See entire post