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Dolphins and Whales News
September 28, 2020

Top Headlines
 

Call of the Wild: Individual Dolphin Calls Used to Estimate Population Size and Movement

A new study has shown for the first time that acoustic monitoring can be used in place of photographs to generate abundance estimates of dolphin ...

Ichthyosaur's Last Meal Is Evidence of Triassic Megapredation

Some 240 million years ago, a dolphin-like ichthyosaur ripped to pieces and swallowed another marine reptile only a little smaller than itself. Then it almost immediately died and was fossilized, ...

Study Finds High Levels of Toxic Pollutants in Stranded Dolphins and Whales

Researchers examined toxins in tissue concentrations and pathology data from 83 stranded dolphins and whales from 2012 to 2018. They looked at 11 different animal species to test for 17 different ...

Whale Airway Mucus Reveals Likely Poor Health During Migration

Researchers have linked the burden of humpback whales' annual migration to depleted microbial diversity in their airways - an indicator of overall ...
Latest Headlines
updated 10:06am EDT

Earlier Headlines
 

Fishing Less Could Be a Win for Both Lobstermen and Endangered Whales

A new study found that New England's historic lobster fishery may turn a higher profit by operating with less gear in the water and a shorter ...

Rarely Heard Narwhal Vocalizations

With the help of Inuit hunters, geophysicists recently recorded the various calls, buzzes, clicks and whistles of narwhals as they summered in a Greenland fjord. The recordings help scientists better ...

Migratory Secrets of Recovering Whale Species

Scientists have discovered where a whale species that feeds around the sub-Antarctic island of South Georgia breeds during the winter months. This understanding of where the animals migrate from will ...

'Pingers' Could Save Porpoises from Fishing Nets

Underwater sound devices called 'pingers' could be an effective, long-term way to prevent porpoises getting caught in fishing nets with no negative behavioral ...

Last Supper: Fish Use Sharp Barbs and Spines to Fight Off Hungry Seals

Research reveals the steep price some marine mammals are willing to pay for food, after a stranded fur seal was discovered with more than a dozen facial wounds inflicted by its seafood ...

Tuning Into Dolphin Chatter Could Boost Conservation Efforts

Researchers have moved an important step closer to using sound rather than sight to track individual dolphin activity. Their study, which has potential implications for dolphin communities around the ...

Three Years of Monitoring of Oregon's Gray Whales Shows Changes in Health

Three years of 'health check-ups' on Oregon's summer resident gray whales shows a compelling relationship between whales' overall body condition and changing ocean conditions that ...

North Atlantic Right Whales Are in Much Poorer Condition Than Southern Right Whales

New research by an international team of scientists reveals that endangered North Atlantic right whales are in much poorer body condition than their counterparts in the southern ...

Surface Feeding Could Provide More Than Just Snacks for New Zealand Blue Whales

Feeding at the ocean's surface appears to play an important role in New Zealand blue whales' foraging strategy, allowing them to optimize their energy ...

Scientists Predict the Size of Plastics Animals Can Eat

A team of scientists has, for the first time, developed a way of predicting the size of plastics different animals are likely to ...

Secrets to Swimming Efficiency of Whales, Dolphins

Recent work has examined the fluid mechanics of cetacean propulsion by numerically simulating their oscillating tail fins. A team developed a model that, for the first time, could quantitatively ...

Scientists Find High Concentrations of Toxic Phenyltin Compounds in Local Chinese White Dolphins

A research team confirmed the occurrence of biomagnification of toxic substance TPT compounds along the marine food chain resulted in very high concentrations of TPT in two top predators, the Chinese ...

New Research Sheds Light on the Unique 'Call' of Ross Sea Killer Whales

New research has found that the smallest type of killer whale has 28 different complex calls, comprising a combination of burst-pulse sounds and whistles, which they use to communicate with family ...

Solar Storms May Leave Gray Whales 'Blind' and Stranded

A new study offers some of the first evidence that gray whales might depend on a magnetic sense to find their way through the ocean. This evidence comes from the discovery that whales are more likely ...

Why Do Whales Migrate? They Return to the Tropics to Shed Their Skin

Whales undertake some of the longest migrations on earth, often swimming many thousands of miles, over many months, to breed in the tropics. The question is why? Scientists propose that whales that ...

A Better Pregnancy Test for Whales

To determine whale pregnancy, researchers have relied on visual cues or hormone tests of blubber collected via darts, but the results were often inconclusive. Research points to a weakness of ...

Earthquakes Disrupt Sperm Whales' Ability to Find Food

Scientists studying sperm whales have discovered earthquakes affect their ability to find food for at least a year. The research is among the first to examine the impact of a large earthquake on a ...

Dolphins Gather in Female Family Groups

Social clusters including mothers' groups play an important role in the life of southern Australian bottlenose dolphins, a new study shows. Like giraffes, lions, hyenas and grey kangaroos, ...

Grey Seals Discovered Clapping Underwater to Communicate

Wild grey seals can clap their flippers underwater during breeding ...

Marine Heat Wave Linked With Spike in Whale Entanglements

Climate change is increasing the frequency and severity of marine heat waves -- warm water anomalies that disrupt marine ecosystems -- and this is creating new challenges for fisheries management and ...

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