We helped the children carve pumpkins into jack-o-lanterns.
Alternatively, if animals had a relatively long Precambrian history, why do so many kinds appear abruptly and more or less synchronously in the fossil record during Early Cambran time? Was there an external environmental factor that either prevented animals from becoming fossilizable (i.e., large muscular, and/or mineralized) prior to the beginning of the Cambrian, or did some biological or environmental event trigger the metazoan radiation? Hypotheses that have been advanced to explain these questions tend to focus on either an external environmental control on, or an internal property of, the organisms that participated in the Cambrian explosion.
The ganglion of the habenulæ located in the trigonum habenulæ just in front of the superior colliculus contains a mesial nucleus with small cells and a lateral nucleus with larger cells.
If you thought wood-chippings masquerading as seeds in strawberry jam were bad, take a look at pink slime , the consolidated debris of butcher's waste now added to your beef burgers, or the gelatine added to your fresh meat […]
