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Fig. 1. A freshly stranded beaked whale (Ziphius cavirostris) without cutaneous lesions that would be an indication of collision trauma, terminal struggling, or predation.
Fig. 2. Mandible; beaked whale (BW-3). Areas of hemorrhage are in the acoustic fat of the jaw. Inset: Photomicrograph of perivascular hemorrhage in the acoustic fat with nonstaining, intravascular bubbles/emboli (arrow). HE. Bar = 25 µm.
Fig. 3. The exposed caudal aspect of the brain and spinal cord shows congestion of the meninges and severe congestion and hemorrhage in the epidural, vascular plexus around the spinal cord.
Fig. 4. Cerebral cortex; beaked whale (BW-2). The gyri of the cortex are swollen and have focal, subarachnoidal hemorrhaging. Inset: Intravascular gas bubbles (arrows) are prominent within a meningeal vessel.
Fig. 5. Brainstem; beaked whale (BW-1). Fig. 5a. Hemorrhage surrounds two vessels. Numerous capillaries are congested. HE. Bar = 25 µm. Fig. 5b. Erythrocytes within a hemorrhage are disrupted by discrete, round, nonstaining air vacuoles. HE. Bar = 25 µm.
