Each spring, massive sweet water thawing rapidly transforms the polar regions and the surrounding seas, where broken-off ice floats to. This is crucial in the life cycle of many species, sometimes extremely elaborate. Many colonies (re)unite to mate, hatch and/or start raising offspring, especially in 'temperate' parts, such as South Georgia island.—KGF Vissers
Spring has arrived in the polar regions and male Adélie penguins arrive in Antarctica to build nests. In the Arctic, a polar bear mother hunts with her cubs. A woolly bear caterpillar emerges having spent the whole of the winter frozen solid.—Anonymous
