Marine biology

A study found man-made noise could increase the risk of mother whales being separated from their calves since their normal vocalizations are quiet.

Sea butterflies are not known to sting or harm humans.

Known as Shonisaurus popularis, the species resembled a chunky dolphin that grew to at least 15.2 meters long and died in large numbers at one particular site some 230 million years ago.

The biological clock is an internal and independent mechanism that dictates daily rhythm, thus enabling an organism to gauge daily and seasonal signals.

The great big ocean is still 80% unexplored, but new scientific studies may help us understand and explore more of it.

According to a 2019 National Geographic article, orcas likely target shark livers because they're "high-fat and delicious."

After monitoring an electronically tagged narwhal for 83 days, researchers noticed irregular diving and surface resting behavior.

Epaulettes have adapted and developed an ability to walk on land which helps them hunt for food in places other sharks cannot reach.

Bathynomus, a group of isopods that live in the deepest parts of the ocean, is distantly related to decapods, such as shrimp, crabs and lobsters.

A new Technion study looks at how marine organisms produce hard tissues from the materials available to them, and under harsh and hostile conditions.