1. Animals are distributed relative to the resources they rely upon, often scaling in abundance relative to available resources. Yet,
Documenting human impacts on marine mammals is critical for understanding and mitigating harm. Although propeller strike injuries in small marine
Species conservation relies on understanding population demographics, yet this information is lacking for many species and populations. Four stocks of
We report 20 photo-documented sightings of a blue/fin whale hybrid between 2004 and 2020, in its wintering and summering ranges
Observational studies describe rough-toothed dolphins (Steno bredanensis) actively foraging during the day on epipelagic species. Using data from depth-transmitting satellite
Studies of the social behavior of Cuvier’s beaked whales (Ziphius cavirostris) are challenging because of their deepwater habitat usually far
Understanding diet is critical for conservation of endangered predators. Southern Resident killer whales (SRKW) (Orcinus orca) are an endangered population
As part of a long-term U.S. Navy-funded marine mammal monitoring program, in February 2020 a combination of vessel-based field effort
Harbor porpoise in the North Pacific are found in coastal waters from southern California to Japan, but population structure is
Cuvier’s beaked whales Ziphius cavirostris are wide-ranging, deep-diving cetaceans that are particularly sensitive to anthropogenic noise. Current stock assessments assume