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Dolphins and Whales News
December 8, 2019
Top Headlines
 
Blue whale (stock image). | Credit: (c) David J. Shuler / stock.adobe.com

First Recording of a Blue Whale's Heart Rate

Nov. 25, 2019 — With a lot of ingenuity and a little luck, researchers monitored the heart rate of a blue whale in the wild. The measurement suggests that blue whale hearts are operating at ... read more
A pod of bottlenose dolphins. | Credit: Copyright Michele Hogan

Dolphins Demonstrate Coordinated Cooperation

Oct. 28, 2019 — Researchers investigated the cooperative abilities of dolphins. Utilizing a simplified Hirata Task, the team found that dolphins coordinated their behavior to work together ... read more

New Whale Species Discovered Along the Coast of Hokkaido

Sep. 3, 2019 — A new beaked whale species Berardius minimus, which has been long postulated by local whalers in Hokkaido, Japan, has been ... read more

Narwhals and Belugas Can Interbreed

June 20, 2019 — A team of researchers has compiled the first and only evidence that narwhals and beluga whales can breed successfully. DNA and stable isotope analysis of an anomalous skull from the Natural History ... read more
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Researchers Use Drones to Weigh Whales

Oct. 2, 2019 — Researchers have devised a way to accurately estimate the weight of free-living whales using only aerial images taken by ... read more

How Long Does a Whale Feed? New Data Gives Insight Into Blue and Fin Whale Behavior

Sep. 11, 2019 — Researchers using electronic tags were able to monitor blue and fin whales off the coast of Southern California over multiple weeks, providing new insight into the feeding behaviors of the two ... read more

Modeling Predicts Blue Whales' Foraging Behavior, Aiding Population Management Efforts

July 17, 2019 — Scientists can predict where and when blue whales are most likely to be foraging for food in the California Current Ecosystem, providing new insight that could aid in the management of the endangered ... read more

New Research Helps Predict Locations of Blue Whales So Ships Can Avoid Them

July 10, 2019 — A new model based on daily oceanographic data and the movements of tagged whales has opened the potential for stakeholders to see where in the ocean endangered blue whales are most likely to be so ... read more

Dolphins Form Friendships Through Shared Interests Just Like Us, Study Finds

June 12, 2019 — When it comes to making friends, it appears dolphins are just like us and form close friendships with other dolphins that have a common interest. The research provides further insight into the social ... read more

New Sub-Species of Pilot Whale Identified in Pacific Ocean

June 3, 2019 — Short-finned pilot whales are found over a wide swath of the world's oceans, with habitats in the Indian, and Pacific, and North Atlantic oceans. Despite this wide distribution, the whales have ... read more

Climate Driving New Right Whale Movement

May 29, 2019 — New research connects recent changes in the movement of North Atlantic right whales to decreased food availability and rising temperatures in Gulf of Maine's deep waters. Right whales have been ... read more

Dolphin Ancestor's Hearing Was More Like Hoofed Mammals Than Today's Sea Creatures

May 15, 2019 — Paleontologists are looking into the evolutionary origins of the whistles and squeaks that dolphins and porpoises make -- part of the rare echolocation ability that allows them to effectively ... read more

How Whales Defy the Cancer Odds: Good Genes

May 10, 2019 — Scientists have studied potential cancer suppression mechanisms in cetaceans, the mammalian group that includes whales, dolphins and porpoises. Biologists picked apart the genome of the humpback ... read more

Mysterious River Dolphin Helps Crack the Code of Marine Mammal Communication

Apr. 19, 2019 — The Araguaian river dolphin of Brazil was thought to be solitary with little social structure that would require communication. But researchers have discovered the dolphins actually are social and ... read more

Ancient, Four-Legged Whale With Otter-Like Features Found Along the Coast of Peru

Apr. 4, 2019 — Cetaceans, the group including whales and dolphins, originated in south Asia more than 50 million years ago from a small, four-legged, hoofed ancestor. Now, researchers reporting the discovery of an ... read more

Climate Change Is a Threat to Dolphins' Survival

Apr. 1, 2019 — An unprecedented marine heatwave had long-lasting negative impacts on both survival and birth rates on the iconic dolphin population in Shark Bay, Western Australia. Researchers have now documented ... read more

Deep Time Tracking Devices: Fossil Barnacles Reveal Prehistoric Whale Migrations

Mar. 25, 2019 — Long-distance migrations are common for large whales, but when in their evolutionary past did whales begin to migrate and why? Scientists looked for these answers in fossil whale ... read more

Review of Noise Impacts on Marine Mammals Yields New Policy Recommendations

Mar. 13, 2019 — Marine mammals are particularly sensitive to noise pollution because they rely on sound for so many essential functions, including communication, navigation, finding food, and avoiding predators. An ... read more

Scientists Find Mystery Killer Whales Off Cape Horn, Chile

Mar. 7, 2019 — In January 2019, scientists working off the tip of southern Chile got their first live look at what might be a new species of killer whale. Genetic samples will help determine whether this animal, ... read more

Male Bottlenose Dolphins Form Bachelor Groups With Their Relatives

Mar. 6, 2019 — New research has analysed the behavior of 12 dolphin social groups in South Australia's Coffin Bay region and shows males who team up in groups of two to five to form beneficial alliances may ... read more

Migrating Blue Whales Rely on Memory More Than Environmental Cues to Find Prey

Feb. 26, 2019 — Blue whales reach their massive size by relying on their exceptional memories to find historically productive feeding sites rather than responding in real time to emerging prey patches, a new study ... read more

Beaked Whales' Incredible Diving Abilities Confirmed

Feb. 6, 2019 — A new study provides the first record of the diving behavior of Cuvier's beaked whales in US Atlantic waters. The species is Earth's deepest-diving mammal but spends very little recovery ... read more

Plastic in Britain's Seals, Dolphins and Whales

Jan. 31, 2019 — Microplastics have been found in the guts of every marine mammal examined in a new study of animals washed up on Britain's ... read more

Why Do Beaked Whales Return to a Navy Sonar Range Despite Frequent Disturbance?

Jan. 29, 2019 — Using data from underwater robots, scientists have discovered that beaked whales prefer to feed within parts of a Navy sonar test range off Southern California that have dense patches of deep-sea ... read more
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