Found: Whale Thought Extinct for 2 Million Years
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."
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
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
Gunman Storms Dutch TV Station Demanding Airtime
Dutch authorities have released few details about the bizarre case of 19-year-old Tarik Zahzah’s attack on the main news studio of television station NOS on Thursday. To get the obvious question out of the way first, the police say there is no evidence that Zahzah, who is half-Egyptian, acted on behalf of organized terrorism.
The authorities always say that on the ...
How Alan Dershowitz bullied rape victims to protect a serial child molester
Harvard law professor Alan Dershowitz always felt children were fair game for Israeli missiles. Now the question is whether he thinks they are fair game for the sexual exploits of his powerful associates and himself.
Dershowitz and the UK’s Prince Andrew were accused in a recent court filing of raping a teenage girl who was forced into sexual slavery by ...
This past week, the world's preeminent vultures, the economic power elite, met in Davos to discuss the maintenance of their global fiat hegemony. Highlights included furthering austerity, noting that the serf class can't have air conditioning and cars, as well as cheering on the death of privacy through the rise of technocracy. The degenerate elite, completely out of touch with ...
Men must prove a woman said ’Yes’ under tough new rape rules
New guidance will be issued to all police forces and prosecutors as part of a ’toolkit’ to move rape investigations into the 21st century
Men accused of date rape will need to convince police that a woman consented to sex as part of a major change in the way sex offences are investigated.
The Director of Public Prosecutions said it was ...
4 beheaded in Saudi Arabia less than a week into King Salman's rule
Comment: So when will the the "Human rights" promoting liberal west elite decide invade Saudi Arabia like they did Libya?
Members of Magic Movement stage a mock execution scene in protest of Saudi Arabia beheading of eight Bangladeshi workers in October 2011.
Four people have been executed in Saudi Arabia less than a week after 79-year-old King Salman assumed power following the ...
|More News » |