We investigated the predator–prey relationship between baleen whales and killer whales by observing predatory scarring (rake marks) on the tail

False killer whales (Pseudorca crassidens) depredate bait and catch in the Hawai‘i-based deep-set longline fishery, and as a result, this

The goal of the present study was to complement existing data of testosterone and progesterone in blue whale (Balaenoptera musculus) blubber from

Postmortem data for harbor seals (Phoca vitulina richardsii) in the Salish Sea were analyzed for epidemiologic trends in congenital diseases.

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