459 results
459 results for: Dolphins
- Animals
Elephant seals recognize rivals by the tempo of their calls
The distinct sputtering-lawnmower sound of a male elephant seal’s call has a tempo that broadcasts his identity to competitors.
- Paleontology
Ancient whale tells tale of when baleen whales had teeth
A 36 million-year-old whale fossil bridges the gap between ancient toothy predators and modern filter-feeding baleen whales.
- Animals
Snot could be crucial to dolphin echolocation
An acoustic model reveals that echolocation relies on mucus lined tissue lumps in the animal’s nasal passage.
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For harbor porpoises, the ocean is a 24-hour buffet
Scientists tagged harbor porpoises with monitoring equipment and found that the small cetaceans eat thousands of fish throughout the day.
- Paleontology
New dolphin fossil makes a splash
A newly discovered dolphin fossil provides clues to the evolution of river dolphins in the Americas.
- Paleontology
New dolphin fossil makes a splash
A newly discovered dolphin fossil provides clues to the evolution of river dolphins in the Americas.
- Animals
Whales are full of toxic chemicals
For decades, scientists have been finding troublesome levels of PCBs, mercury and other toxic chemicals in whales and dolphins.
- Paleontology
New fossil suggests echolocation evolved early in whales
A 27-million-year-old whale fossil sheds light on echolocation’s beginnings.
- Environment
PCB levels still high in Europe’s killer whales, smaller dolphins
PCBs banned for decades still show up at extremely high concentrations in Europe’s killer whales and other dolphins.
- Anthropology
Humans, birds communicate to collaborate
Bird species takes hunter-gatherers to honeybees’ nests when called on.
- Paleontology
Ancient armored fish revises early history of jaws
The fossil of a 423-million-year-old armored fish from China suggests that the jaws of all modern land vertebrates and bony fish originated in a bizarre group of animals called placoderms.
- Animals
Eyewitness account of a dolphin birth takes a dark turn
Scientists witnessed the first wild birth of a bottlenose dolphin — and an attempt at infanticide.
