#DYK Arctic sea ice plays a large role in the birth of polar bear cubs and whether they survive to adulthood? The polar bear’s reproductive journey is tied to the sea ice. In spring, males carefully sniff out any polar bear tracks they cross in their travels, as adult females are thought to leave behind a chemical scent that signals whether they’re available for breeding. When a male detects such a track, he immediately starts following the female until he catches up, sometimes traveling for lon

459K views · 8.5K reactions | Polar Bear Cubs: Surviving Arctic Challenges | Real Wild | Facebook