The article discusses how blue whale mothers defend their babies against orca attacks, which are rare, high-risk events that require coordinated pod hunting. Blue whale calves are still vulnerable due to their large size at birth but still vulnerable to attacks by orca whales. Mothers use their massive bodies as shields and use tail strikes, turbulence, and short bursts of speed to disrupt orca attack. Adult blue whales can shift from calm krill feeders to forceful defenders, using body positioning, speed, and powerful tail strikes to protect their young. Successful defense during the first year is crucial for survival and long-term population stability. Despite commercial whaling reducing global numbers by an estimated 80 to 90 percent, there are estimated to be roughly 10,000 to 25,000 blue whales left in the world today. Despite partial recovery, blue whales remain listed as Endangered under the IUCN Red List. Current threats include ship strikes, fishing gear entanglement, ocean noise, and climate-driven shifts in krill availability.