90.9 WBUR - Boston's NPR news station
Top Stories:
PLEDGE NOW
The Musk Ox: A Survivor's Tale

Two musk ox bulls engage in butting contests as the bulls strive to determine dominance of a herd north of Nome on Alaska’s Seward Peninsula, 2006. (AP)

By Tom Ashbrook

It’s getting weird in the Arctic. The climate is changing, and the ice is melting. Polar bears and grizzlies are confused and interbreeding.

In the middle of all this stands the musk ox – one of the planet’s great survivors. From Alaska to Northern Canada and pockets in Norway and Siberia – the musk ox endures, and its story is much wilder than you probably know.

It survived when the other greats of the Pleistocene – wooly mammoth, mastodon, saber-toothed cats, giant sloth – all went away. And it returned to Alaska by way of New York Harbor.

Now, it turns out, the musk ox could again be the great survivor in our new Arctic age of extinction.

Ross MacPhee, a curator in the department of mammalogy at the American Museum of Natural History in New York City, says the musk ox’s homogenous genetic makeup suggests it has been through population stress before and can survive boom-and-bust cycles.

“What we find with living musk oxen is they’re not exactly clones, but they’re so amazingly similar that there’s only one explanation,” MacPhee says. “And that explanation is that they had to have had a very severe pinch on their populations. We estimate that that happened about ten thousand years ago.”

But that doesn’t mean it’s all good news for the cold-weather beast, which is most closely related to goats and sheep and can weigh up to 800 pounds. The pace of these changes could challenge even an animal as resilient as the musk ox, scientists say.

Brendan Kelly, an Arctic ecologist and research scientist for the National Oceanic and Atmospheric Administration, says all Arctic species are currently endangered by the rapid speed of climate change.

“For organisms to adapt – whether it’s changing body size, or changing the timing that they have their calves, and hence can match when the plants are most nutritious – it really depends on the rate of the environmental change relative to the generation time of the organism,” Kelly says. “So if there’s a really, really rapid environmental change, it’s very hard for there to be an adaptive response.”

Musk oxen in the Arctic National Wildlife Refuge on Alaska's North Slope. (AP)

A herd of musk ox graze in an area of the Arctic National Wildlife Refuge in Alaska. (AP)

Qiviut, the ultra-soft brown undercoat of the musk ox, is seen on the back of a baby musk ox at a farm in Palmer, Alaska, 2005. (AP)

A female Musk Ox licks its newborn calf in the Daehlhoelzli Zoo in Bern, Switzerland, 2009. (AP)

A dead musk ox on Alaska's North Slope in 2004. (AP)

(Credit: U.S. Fish and Wildlife Service)

Musk ox at the Pavillon de la Faune, Stratford, Quebec (Wikimedia Commons/Circeus)

Guests in this show:

Jim Lawler, biologist with the National Parks Service’s Arctic Network and an expert on musk oxen.

Ross MacPhee, expert on ancient mammals and a curator at the department of mammalogy at the American Museum of Natural History. He’s also curator of the Museum’s current “Race to the End of the Earth” exhibit on the exploration of Antarctica.

Brendan Kelly, research scientist with the National Oceanic and Atmospheric Administration’s Marine Mammal Laboratory, based in Juneau, Alaska. He’s the lead author of a new scientific study suggesting that loss of sea ice could lead to increased hybridization and loss of biodiversity in Arctic species.

Please follow our community rules when engaging in comment discussion on this site.
ONPOINT
TODAY
Oct 24, 2014
Ottawa police officers, with Parliament Hill in the background, guard the area around the National War Memorial in downtown Ottawa on Thursday. (Reuters/Landov)

Gunfire in Canada’s capital. Billionaire millions hit the midterms. Huge airbag recall. Ben Bradlee is dead. Our weekly news roundtable goes behind the headlines.

Oct 24, 2014
Andrew (Miles Teller) and his often demanding conductor, Terrence (J.K. Simmons) in a scene from the new film, "Whiplash." (Courtesy Sony Pictures Classics)

The new movie “Whiplash”. The thin line between obsession and abuse on the road to greatness. In music, the arts…sports.

RECENT
SHOWS
Oct 24, 2014
Andrew (Miles Teller) and his often demanding conductor, Terrence (J.K. Simmons) in a scene from the new film, "Whiplash." (Courtesy Sony Pictures Classics)

The new movie “Whiplash”. The thin line between obsession and abuse on the road to greatness. In music, the arts…sports.

 
Oct 24, 2014
Ottawa police officers, with Parliament Hill in the background, guard the area around the National War Memorial in downtown Ottawa on Thursday. (Reuters/Landov)

Gunfire in Canada’s capital. Billionaire millions hit the midterms. Huge airbag recall. Ben Bradlee is dead. Our weekly news roundtable goes behind the headlines.

On Point Blog
On Point Blog
The Explicast, Episode Two: Why Is Election Day On A Tuesday?
Friday, Oct 24, 2014

The Explicast is back for another round. This time, we’re looking at Election Day, and why we all keep voting on a random Tuesday in early November.

More »
Comment
 
Our Week In The Web: October 24, 2014
Friday, Oct 24, 2014

On comments, comment sections, and ROY G BIV.

More »
Comment
 
Introducing The Explicast: A New Podcast From On Point Radio
Friday, Oct 17, 2014

Confused about the news? Don’t worry: so are we sometimes! Introducing a new On Point Radio podcast: The Explicast. You can find Episode One right here.

More »
3 Comments