North Atlantic Right Whale Calving Season Ends with 23 Calves — Best in 15 Years

The 2025–2026 North Atlantic Right Whale (NARW) calving season concluded with 23 confirmed mother-calf pairs — the highest count since 2009 and the first time in 15 years that more than 20 calves were documented. Sightings spanning North Carolina to Florida and into the Gulf of Mexico were compiled by NOAA Fisheries and cooperating aerial survey teams over the November 2025–April 2026 season. Of the 23 calves, 20 were born to returning mothers; 13 of those mothers had shorter-than-average inter-birth intervals, suggesting improving nutritional conditions or reduced stress from recent entanglement mitigation measures. The population remains critically low at approximately 380 individuals, including roughly 70 reproductively active females. Scientists cautiously welcomed the uptick but warned that the species' survival trajectory depends on comprehensive elimination of rope entanglement risk — the leading cause of mortality. The IUCN formally upgraded the species to Critically Endangered in April 2026.