A polar bear peers into a window in Svalbard, Norway.
An emperor penguin huddles with its chick in the Antarctic cold.
Emperor penguins might not be able to fly, but that doesn't mean they can't leap.
An orca drives a school of herring towards the surface in Norwegian waters.
next slide will load in 15 secondsSkip AdSkip AdA group of narwhals gathers in Arctic waters.
An iceberg cruises like a ship through the Antarctic sound.
A leopard seal strikes a pose in Antarctic waters.
"We must act now to save the diversity of life in the polar regions of the Arctic and Antarctic and enact positive change for our planet," Nicklen wrote on Facebook.