The monarch butterfly makes a big comeback in Mexico, their winter migration grounds, says a new report.
After hibernation of 30 years, the tardigrades are beginning to relive.
A comet-chasing spacecraft sent its first signal back to Earth on Monday, waking up after almost three years of hibernation. Scientists hope to use it to land the first space lander onto a comet.
Scientists in Pensylvania have confirmed that the second-largest bat colony in the state has been decimated by white-nose syndrome.
Japan's giant isopod has not eaten since Jan. 2 2009.