Global climate change may have greater impact on animals than humans, according to a new study released by a team of researchers led by Robert Colwell at the University of Connecticut. Some tropical species are living near their maximum temperatures already and warmer conditions could cause them to decline. The researchers estimated that a temperature increase of 5.8° over a century would make 53% of the 1,902 lowland tropical species they studied subject to loss. Earlier this year a study of 171 forest species in Western Europe showed most of them are shifting their favored locations to higher, cooler spots.