Page 4: Research news on rorquals (family)

Rorquals are baleen whales of the family Balaenopteridae, characterized by elongate bodies, pleated ventral grooves (ventral furrows), and generally falcate dorsal fins, and include genera such as Balaenoptera and Megaptera. They are specialized lunge feeders, using expandable throat pleats and a distensible buccal cavity to engulf large volumes of prey-laden water, which is then filtered through keratinous baleen plates. Rorquals exhibit extreme body-size evolution, with several species among the largest animals known, and show distinct migratory behavior between high-latitude feeding grounds and low-latitude breeding areas, playing major roles in marine trophic dynamics and biogeochemical cycling.

Whales go quiet during noisy underwater surveys

A new study has shown that whale calls are reduced by as much as 50% in response to seismic surveys, which are commonly used to find oil and gas reserves. Researchers are worried that such surveys could impact vulnerable ...

Freed whale gets stranded again off German coast

A humpback whale struggling in shallow waters off Germany's northern Baltic Sea coast has become stranded for a third time, experts said on Sunday, just hours after the animal had freed itself from a sandbank.

War threatens Gulf's dugongs, turtles and birds

From sea turtles to birds and the gentle dugong, the Persian Gulf's diverse but fragile marine life is threatened by the bombs and oil of the war in the Middle East.

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