2006.04.17
Science News:
Branchless Evolution -- Fossils point to single hominid root.
"A team led by anthropologist Tim D. White of the University of California, Berkeley unearthed 31 fossils of Australopithecus anamensis, the earliest known species of this ancient hominid genus." ...
"Anatomical similarities indicate that Au. anamensis evolved directly from an earlier hominid, Ardipithecus ramidus, between 4.4 million and 4.1 million years ago, the researchers assert in the April 13 Nature. By 3.6 million years ago, they add, Au. anamensis had evolved into Australopithecus afarensis, the species that includes the partial skeleton known as Lucy."
2006.04.06
NYT:
Fossil Called Missing Link From Sea to Land Animals.
"Scientists have discovered fossils of a
375-million-year-old fish, a large scaly creature not
seen before, that they say is a long-sought missing link
in the evolution of some fishes from water to a life
walking on four limbs on land." ...
"In an interview, Dr. Shubin, an evolutionary biologist,
let himself go. ‘It's a really amazing, remarkable
intermediate fossil,’ he said. ‘It's like,
holy cow.’"
2006.04.02
Science News:
Uncharted Territory. Ultraslow ridges hold new clues to crust's formation.
"... Gakkel Ridge is one of only two places known on the planet where the tectonic plates that make up Earth's hard outer crust slide apart and expose large slabs of the mantle on the seafloor. That mantle is normally buried under 6 km of crustal rock."
Nature:
Study challenges prayers for the sick.
"Distant prayers do not help people recovering from heart surgery and could even cause them more health problems, according to the results of a large and controversial clinical trial that critics have labelled a waste of money."