News from the Geoblogosphere
New from Snet:
, a new tool to create lithological/sedimentological logs online..
Blog post recommendation
NOTOCHORDS: CHORDATES OR CALAMARI
You and I are vertebrates, we have backbones. While we sometimes use the term to denote character, having a backbone or spinal column is what sets apart almost 70,000 species on this big blue planet. So which lucky ducks evolved one? Warm-blooded birds and mammals can claim those bragging rights. They're joined by our cold-blooded, ectothermic friends, the fish, amphibians and reptiles. All