MarineBio Conservation SocietyDolphin and Whale News   :: ScienceDaily

New Zealand has its own population of blue whales

Thu, 17 May 2018 11:38:42 EDT ~ A group of blue whales that frequent the South Taranaki Bight (STB) between the North and South islands of New Zealand appears to be part of a local population that is genetically distinct from other blue whales in the Pacific Ocean and Southern Ocean, a new study has found. Find out more...

Diverse and abundant megafauna documented at new Atlantic US Marine National Monument

Wed, 16 May 2018 17:22:49 EDT ~ Airborne marine biologists were dazzled by the diversity and abundance of large, unusual and sometimes endangered marine wildlife on a recent trip to the Northeast Canyons and Seamounts National Marine Monument, about 150 miles southeast of Cape Cod. Find out more...

Jurassic fossil tail tells of missing link in crocodile family tree

Fri, 11 May 2018 12:32:31 EDT ~ A 180-million-year-old fossil has shed light on how some ancient crocodiles evolved into dolphin-like animals. Find out more...

Ancient skull shows early 'baleen whale' had teeth

Thu, 10 May 2018 15:02:20 EDT ~ Today's baleen whales (Mysticetes) support their massive bodies by filtering huge volumes of small prey from seawater using comb-like baleen in their mouths. But new evidence based on careful analysis of a 34-million-year-old whale skull from Antarctica -- the second-oldest 'baleen' whale ever found -- suggests that early whales actually didn't have baleen. Their had well-developed gums and teeth, which they apparently used to bite large prey. Find out more...

River dolphins are declining steeply in the Amazon basin

Wed, 02 May 2018 15:34:03 EDT ~ Populations of freshwater dolphins in the Amazon basin are in steep decline, dropping by half about every decade at current rates, according to a new study. Find out more...

Whale shark logs longest-recorded trans-Pacific migration

Thu, 26 Apr 2018 18:00:07 EDT ~ A whale shark named Anne swam all the way across the Pacific from Coiba National Park in Panama to the Marianas Trench, setting a record as the longest-recorded migration. Find out more...

How do marine mammals avoid the bends?

Wed, 25 Apr 2018 09:38:10 EDT ~ Deep-diving whales and other marine mammals can get the bends -- the same painful and potentially life-threatening decompression sickness that strikes scuba divers who surface too quickly. A new study offers a hypothesis of how marine mammals generally avoid getting the bends and how they can succumb under stressful conditions. Find out more...

Killer whale genetics raise inbreeding questions

Tue, 24 Apr 2018 14:11:38 EDT ~ A new genetic analysis of Southern Resident killer whales found that two male whales fathered more than half of the calves born since 1990 that scientists have samples from, a sign of inbreeding in the small killer whale population that frequents Washington's Salish Sea and Puget Sound. Find out more...

'Environmental DNA' used to identify killer whales in Puget Sound

Mon, 23 Apr 2018 13:50:43 EDT ~ When endangered killer whales swim through the sheltered waters of Puget Sound, they leave behind traces of 'environmental DNA' that researchers can detect as much as two hours later has found. Find out more...

Bottlenose dolphins recorded for the first time in Canadian Pacific waters

Thu, 19 Apr 2018 23:38:28 EDT ~ A large group of common bottlenose dolphins (Tursiops truncatus) have been spotted in Canadian Pacific waters -- the first confirmed occurrence of the species in this area. Find out more...