Most marine mammals exhibit spontaneous ovulation rather than induced ovulation.

Marine mammals can actively control gas exchange during a dive.

The penis of cetaceans is generally rigid and fixed in direction.

Why is blubber considered more than just fat in marine mammals?

Which anatomical adaptation allows gas exchange to cease at depth in deep-diving marine mammals?

Sound transmission in mysticetes might involve bone conduction through skull vibration.

Some species of beaked whales can remain submerged for over two hours.

What is the primary location of sound production in mysticetes such as humpback whales?

What innovative technique did Dr. Orbach use to study vaginal morphology?

Marine mammals generally inhale deeply before diving to maximize oxygen stores.