Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

10/19/2012 (1 year ago)

Catholic Online (www.catholic.org)

Otton frog uses spikes which protrude from false thumb for combat -- and mating

Discovering new and unusual species on the planet Earth is a common occurrence, Now, Japanese researchers have discovered a new species of frogs that uses "Wolverine"-like spikes for both fighting - and mating.

Called the Otton frog, or Babina subaspera, these new species calls the Amami islands of Southern Japan its home. Both males and females of the species have the spike.

Called the Otton frog, or Babina subaspera, these new species calls the Amami islands of Southern Japan its home. Both males and females of the species have the spike.

Article Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

10/19/2012 (1 year ago)

Published in Green

Keywords: Otton frog, Japan, Wolverine, species, mating, fighting


LOS ANGELES, CA (Catholic online) - Called the Otton frog, or Babina subaspera, these new species calls the Amami islands of Southern Japan its home. Both males and females of the species have the spike.

The study, conducted by Dr Noriko Iwai from the University of Tokyo found that unlike most other frogs, the Otton has an extra digit-like structure. It's a trait that the frog shares with the five-fingered Hypsiboas rosenbergi frogs of Latin America.

"Why these fifth fingers exist in some species remains an evolutionary mystery, but the extra digit of the Otton is in fact a pseudo-thumb," Iwai said.

"The digit encases a sharp spine which can project out of the skin, which fieldwork demonstrates is used for combat and mating," she said.

Studying the rare frogs since 2004, researchers wished to understand the species' distribution, breeding habits and range. These factors would be used in any conservation strategy.

Once Iwai began exploring how the Otton's use their pseudo-thumbs, she discovered that while both males and females had the spike, it was only used by males, who were found to have larger pseudo-thumbs than the females. Iwai believes that the spikes evolved for anchoring to the female, known as amplexus, the Latin for embrace, during mating.

"While the pseudo-thumb may have evolved for mating, it is clear that they're now used for combat," Iwai said.

"The males demonstrated a jabbing response with the thumb when they were picked up, and the many scars on the male spines provided evidence of fighting," she said.

Spikes which shoot from fingers are a key weapon for Wolverine, the comic book superhero. Perhaps unfortunately, the image projected by the star of screen and comic books is slightly dented by the frogs' fighting style.

Rather than dueling with thumb spikes the males wrestle each other in an embrace, jabbing at each other with the spines.

This fighting style helps confirm the theory that the spines were original used for embracing mates.

.

---


Pope Francis calls for your 'Prayer and Action'


© 2014 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for March 2014
Respect for Women:
That all cultures may respect the rights and dignity of women.
Vocations: That many young people may accept the Lordís invitation to consecrate their lives to proclaiming the Gospel.



Comments


More Green

BIOLOGICAL WARFARE? Smog from India, China winds way to U.S., Canada Watch

Image of The smog in Asia, it must be noted is caused by more than just the burning of fossil fuels - it's comprised of nitrogen oxides, methane and other volatile organic compounds that combine to produce ozone.

By Catholic Online (NEWS CONSORTIUM)

Ripples in the global pond, half a world away, can have effects all over the globe. Researchers at Texas A&M now say that air pollution originating in both India and China, almost certainly affects global weather patterns, particularly in the United States and ... continue reading


MONSTER El Nino forming in South Pacific, will being devastating weather around the globe in 2014-2015 Watch

Image of We may see a sharp increase in severe weather events for 2014-2015.

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

According to scientists, a massive El Nino is forming in the Pacific and it may be the largest such El Nino ever recorded. If true then the entire planet may experience an uptick in extreme weather events with serious consequences for life and property around the ... continue reading


World must turn to wind and solar to combat global warming, report says Watch

Image of Scientists are optimistic that if renewable energy is quickly rolled out, homes are built in a more sustainable and energy efficient way, and human consumption and wastefulness is changed, climate change can be controlled.

By Catholic Online (NEWS CONSORTIUM)

The world must turn to the wind or sun for its energy needs -- or face catastrophic consequences wrought by climate change. That's the news from a recent report from the United Nations on global warming. These devastating effects could take place as early as 15 ... continue reading


Former Indonesian tropical paradise reduced to garbage dump Watch

Image of The water at times turns red, green, yellow and black because of the high concentration of dyes.

By Catholic Online (NEWS CONSORTIUM)

As people in China's most air polluted cities cheerfully don face masks, a fisherman on Indonesia's Citarum River has blankly accepted his polluted fate. Once searching for fish, Herman, the name of the fisherman proffered to news reporters says he now looks ... continue reading


THIRD Oarfish sighting in Sea of Cortez stokes earthquake fears Watch

Image of A tour guide lies beside a beached oarfish specimen on the Isla San Francisco in Mexico.

By Catholic Online (NEWS CONSORTIUM)

An oarfish has been found washed on an island beach in Mexico, leading to speculation if it is one of the two previously sighted and filmed last month, or if it is in fact a third specimen. If it is a third, it could fuel rumors of an earthquake since anecdotal ... continue reading


Japanese island consumes another in unusual volcanic activity Watch

Image of Two volcanic craters are shown on Niijima on November 22. The island emerged about 1,000 kilometers (600 miles) south of Tokyo in the Ogasawara Islands, also known as the Bonin Islands.

By Catholic Online (NEWS CONSORTIUM)

In a spate of highly unusual volcanic activity, one Japanese island has merged with another nearby island. Niijima Island, a volcano which broke through the ocean's surface last November, has now merged with a nearby island that formed from a volcano which last ... continue reading


Are these oarfish in Mexico predicting an earthquake? Tourists film TWO live oarfish trying to beach themselves Watch

Image of Oarfish are legendary harbingers of earthquakes.

By Catholic Online (NEWS CONSORTIUM)

An amazing new video shows two oarfish swimming just offshore in Mexico to the delight of ecotourists on a kayaking tour. The video, taken last March, shows the pair of fish possibly about to beach themselves. Oarfish are rarely sighted and legend associates their ... continue reading


MASS EXTINCTION: All life on Earth went extinct 252 million years ago Watch

Image of The Permian-Triassic extinction has been defined as a natural event that heated up the Earth's biological systems.

By Catholic Online (NEWS CONSORTIUM)

Nearly all life on Earth became extinct 252 million years ago. According to Massachusetts Institute of Technology, or MIT scientists, the culprit was not an asteroid striking the planet, but a methane-spewing microbe. LOS ANGELES, CA (Catholic Online) - Daniel ... continue reading


Bison, elk appear to be fleeing Yellowstone. Is supervolcano eruption eminent? Watch

Image of A supervolcano under Yellowstone could cause mass extinctions if it erupted.

By Catholic Online (NEWS CONSORTIUM)

Talk of a supervolcano eruption in Yellowstone National Park has hit the blogosphere after several people have posted videos of animals fleeing the sanctuary. A supervolcano eruption would destroy everything for hundreds of miles around and would plunge the planet into ... continue reading


Global warming is inevitable: It's time for a new ecology. Watch

Image of

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

The latest revelation from climate scientists is that they now believe global climate change as a result of human activities is now inevitable and irreversible. Furthermore, it will affect everybody in the years to come-if it hasn't already. It is nigh time for a new ... continue reading


All Green News

Newsletters

Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Daily Readings

Reading 1, Genesis 1:1--2:2
1 In the beginning God created heaven and ... Read More

Psalm, Psalms 16:5, 8, 9-10, 11
5 My birthright, my cup is Yahweh; you, you alone, ... Read More

Gospel, Matthew 28:1-10
1 After the Sabbath, and towards dawn on the first ... Read More

Reading 2, Genesis 22:1-18
1 It happened some time later that God put Abraham to ... Read More

Saint of the Day

Saint of the Day for April 19th, 2014 Image

St. Alphege
April 19: Archbishop and "the First Martyr of Canterbury." He was born in ... Read More

Inform, Inspire & Ignite Logo

Find Catholic Online on Facebook and get updates right in your live feed.

Become a fan of Catholic Online on Facebook


Follow Catholic Online on Twitter and get News and Product updates.

Follow us on Twitter