Found: Whale Thought Extinct for 2 Million Years
2012-12-20 0:00

From: MNN.com

The pygmy right whale, a mysterious and elusive creature that rarely comes to shore, is the last living relative of an ancient group of whales long believed to be extinct, a new study suggests.


The elusive marine mammals inhabit the Southern Hemisphere and have only been spotted at sea a few dozen times.


The findings, published today (Dec. 18) in the Proceedings of the Royal Society B, may help to explain why the enigmatic marine mammals look so different from any other living whale.

"The living pygmy right whale is, if you like, a remnant, almost like a living fossil," said Felix Marx, a paleontologist at the University of Otago in New Zealand. "It’s the last survivor of quite an ancient lineage that until now no one thought was around."

Living fossil

The relatively diminutive pygmy right whale, which grows to just 21 feet (6.5 meters) long, lives out in the open ocean. The elusive marine mammals inhabit the Southern Hemisphere and have only been spotted at sea a few dozen times. As a result, scientists know almost nothing about the species’ habits or social structure.

The strange creature’s arched, frownlike snout makes it look oddly different from other living whales. DNA analysis suggested pygmy right whales diverged from modern baleen whales such as the blue whale and the humpback whale between 17 million and 25 million years ago. However, the pygmy whales’ snouts suggested they were more closely related to the family of whales that includes the bowhead whale. Yet there were no studies of fossils showing how the pygmy whale had evolved, Marx said.

To understand how the pygmy whale fit into the lineage of whales, Marx and his colleagues carefully analyzed the skull bones and other fossil fragments from pygmy right whales and several other ancient cetaceans.

The pygmy whale’s skull most closely resembled that of an ancient family of whales called cetotheres that were thought to have gone extinct around 2 million years ago, the researchers found. Cetotheres emerged about 15 million years ago and once occupied oceans across the globe.

The findings help explain how pygmy whales evolved and may also help shed light on how these ancient "lost" whales lived. The new information is also a first step in reconstructing the ancient lineage all the way back to the point when all members of this group first diverged, he said.


Article from: mnn.com



Related Articles
Rare Photographs of 12 Extinct Birds
Snake Returns from Extinction
"Extinct" frog hops back into northern Israel
Leading Anthropologist Says Human Beings "Extinction Proof"
"Extinct" Animals Back From The Dead


Latest News from our Front Page

Not Again: More US AID, Missiles Shipped to al Qaeda, al Nusra and ISIS in Syria, Iraq
2015-03-06 4:28
Two weeks ago, 21WIRE reported on how ISIS and other terrorists militants operating in Syria and Iraq are receiving regular weapons and ‘supply drops’ – forming a ‘rat line’ which seems to be playing a crucial role in keeping this highly profitable conflict going on both sides. This week, it’s been reported that Jabhat Al-Nusra fighters have been brandishing US-supplied ...
Swedish parliament removes Baroque artist's bare breasted painting for offending feminists and Muslims
2015-03-06 3:28
A nude painting named Juno, which was painted by baroque artist G E Schröder and has hung in the dining room of the Swedish Parliament for 30 years has been taken down for fear of offending the sensitivities of feminists and Muslim visitors, Swedish newspaper, The Local reported on Thursday. Explaining the ban on the baroque breasts, a source from the ...
White US children will be minorities by 2020 after immigrant 'baby boom', Census reveals
2015-03-05 19:50
This is the result of an ongoing trend of declining birth among white Americans and a baby boom among immigrant groups, as well as a surge in immigration. By the year 2020, 50.2percent of all children in the US are expected to be non-white, according to the Census. By 2044, whites will be outnumbered by minorities. The Census study, released ...
New Jersey Shopkeeper Hangs 'White History Month' Sign In Window
2015-03-05 18:08
A deli owner in Flemington, New Jersey, has angered many of his neighbors by posting a sign on his window that reads, "Celebrate Your White Heritage in March White History Month." Jim Boggess, who is the owner of Jimbo's Deli, says he put up the sign to remind everyone that they should be proud of their race and culture. "No matter what ...
The Viking ”Maine Penny” Mystery
2015-03-05 3:41
In 1957, during his second year of digging at the Goddard site; a large prehistoric Indian trade village in Penobscot Bay on the central Maine coast, local resident and amateur archaeologist Guy Mellgren found a small silver coin. The coin is later identified by experts as a Norse silver penny dating to the reign of Olaf Kyrre, king of Norway ...
More News »