«It sounds as if [they] are likely to proceed with cloning in humans
despite animal data that raises concerns and worries about it,» says Mark Siegler, a doctor and ethicist at the University of Chicago.
A new paper that combines paleoclimatology
data for the last 56 million years with molecular genetic evidence concludes there were no biological extinctions [of Arctic marine
animals] over the last 1.5 M years
despite profound Arctic sea ice changes that included ice - free summers: polar bears, seals, walrus and other species successfully adapted to habitat changes that exceeded those predicted by USGS and US Fish and Wildlife polar bear biologists over the next 100 years.