Marine Mammals : Science World Report

Feb 06, 2015 09:07 AM EST

Killer Whale Victim Identified by Biologists with New DNA Evidence

Observers on a NOAA Fisheries marine mammal survey watched as a pod of killer whales killed a marine animal, leaving only its lungs and heart behind. Now, scientists have learned exactly what the whales killed and then ate with DNA evidence.

Jan 19, 2015 10:04 AM EST

Deep-Diving Marine Mammals Experience Arrhythmias During Challenging Dives

It turns out that even though dolphins and seals are made for deep dives, exercising while holding their breath still remains a physiological challenge for marine mammals.

May 02, 2014 08:30 AM EDT

Whales and Marine Mammals Impacted by Sonar Signals Far More Than We Realized

Scientists have found that marine mammals likely hear sonar signals far more often than thought, since commercially available sonar systems emit signals known to be within their hearing range.

Feb 17, 2014 11:43 AM EST

Climate Change Causes Diseases in Marine Mammals in the Arctic

Climate change may be impacting Arctic marine mammals. There's been an emergence of the disease Sarcocystis pinnipedi due to changing temperatures.

Dec 31, 2013 07:10 AM EST

DNA Barcoding Could Monitor Marine Mammal Biodiversity

Monitoring marine mammal biodiversity is often difficult. Now, though, scientists have found a way that could help monitor marine mammal genetic diversity. They've evaluated the usefulness of DNA barcoding when it comes to monitoring this biodiversity.