Arctic sea ice meltdown leaving marine mammals' future uncertain
Arctic sea ice meltdown leaving marine mammals' future uncertain

A first-ever effort to gauge the ecological status of marine mammals living in the Arctic has been revealed.

Irregular heart beat detected in marine mammals

Scientists have detected high frequency of heart arrhythmias or irregular heart beats in bottlenose dolphins and Weddell seals during their deepest dives.

Increased global shipping has caused pollution on open seas

 Owing to growing international trade, maritime traffic on the world's oceans has increased four-fold over the past 20 years, causing more water, air and noise pollution on the open seas, says a new research.

New dolphin fossil reveals evolution of Ganges dolphin

The discovery of a new fossil of dolphin species belonging to an extinct family of dolphins has shed light on the history of the endangered Ganges and Indus river dolphins living today.

Whale tourism affecting marine animals' behaviour
Whale tourism affecting marine animals' behaviour

  Boat trips to watch whales and dolphins may increasingly put the survival of marine mammals at risk, conservationists have warned.

Human skin fungus tracked to deep sea animals

A ubiquitous skin fungus linked to dandruff, eczema and other itchy, flaky maladies in humans has now been tracked to Hawaiian coral reefs and the extreme environments of arctic soils and deep sea vents.

Sonar signal `leaks` likely audible to some marine mammals

Scientists have found that killer whales and other marine mammals can hear sonar signals better than previously thought.

Whales hear sonar signals more than we realize

A new study has found that killer whales and other marine mammals are likelier to hear sonar signals more than we`ve known.

Cuvier`s beaked whales most extreme breath-holders among marine mammals

Cuvier`s beaked whales are claimed to be the most extreme breath-holders among marine mammals.

Scientists count whales from above the sky

In a breakthrough that could revolutionise the way marine mammal populations are estimated, scientists have demonstrated a new method for counting the whales from above the sky.

Six whales die on Brazil beach

Six whales died after they beached themselves in the northeastern Brazilian state of Rio Grande do Norte, officials said Monday.

Calorie-rich diet key to survival of whales and dolphins

Survival of whales and dolphins depends on the right kind of high-energy diet and not just any prey will do, scientists say.

Whales closer to us than thought, say scientists

Marine mammals are smarter than thought and share several attributes of humans, scientists say.