...Jack Chang, E. Eduardo Castillo , Olga R. Rodriguez, Santiago Torrado and Anita Snow contributed to this report from Mexico City and Cesar Barrantes from San Jose, Costa Rica. AP Science Writer Alicia Chang contributed from Los Angeles.

...High School in 2001, then went on to earn degrees in Russian studies and marine affairs. She currently works as a science writer. Alex is the son of the late Luda and Mikhail Ingerman. He was born in the Ukraine and has lived in the Russian...

...Geophysical Institute, University of Alaska Fairbanks, in cooperation with the UAF research community. Ned Rozell is a science writer at the institute. This column first appeared in 1998.

...Geophysical Institute, University of Alaska Fairbanks, in cooperation with the UAF research community. Ned Rozell is a science writer at the institute. He can be reached on e-mail at nrozell@dino.gi.alaska.edu.