Go to Sleep, Wake Up, and Christmas!
One of my favorite Christmas memories happened when my youngest son, who is autistic, first began to understand the excitement of this joyous holiday. Like most children, he was eager for Christmas morning, but my explaining the concept of “five days away” didn’t make sense to him. Numbers and dates were too abstract.

Oldest Evidence of Butterflies
Insects such as the ubiquitous butterfly belong to the huge phylum Arthropoda (creatures having paired, jointed appendages and a chitinous exoskeleton). There is no indication this phylum evolved from some other group. Indeed, arthropods “have a rich fossil record extending to the very late Precambrian period” as arthropods.1





