Topic: extremophiles

Wood frog (Getty Images/Auscape/Universal Images Group)

Animals that die and come back to life

Carlyn Zwarenstein
The famed "Tufa" formations of Mono Lake, near Lee Vining, CA, will slowly be re-submerged into the briny water where they were formed by an underwater chemical reaction between submerged freshwater springs and salty lake water June 22, 2000. The fragile limestone formations became exposed to the air as a result of the diverting of five inflowing streams to quench the thirst of the city of Los Angeles, 350 miles to the south, since 1941. Two decades of environmental activism to restore the water level and save the threatened ecosystem of one of the oldest lakes in North America, more than 760,000 years old, resulted in the implementation of a stream restoration plan in 1998 which will ultimately return the lake level to within 25 feet of its 1941 elevation. (David McNew/Newsmakers)

For some nematodes, sex is a trinary

Nicole Karlis