Heartbreaking news emerges from the Pacific Northwest as researchers confirm a newborn Southern Resident killer whale calf is missing and presumed dead, dealing another critical blow to the endangered population.
The Nova Scotia Nature Trust launches an urgent $750,000 fundraising campaign to protect the critically endangered coastal limestone barren ecosystem, home to rare species found nowhere else in Canada.
Scientists searching for Shackleton's Endurance uncover breathtaking underwater metropolis built by icefish, revealing secrets of Antarctic ecosystem.