Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

10/19/2012 (2 years 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.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

10/19/2012 (2 years 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: end world hunger through 'Prayer and Action'


Copywriter 2015 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for March 2015
Universal:
Scientists: That those involved in scientific research may serve the well-being of the whole human person.
Evangelization: Contribution of women: That the unique contribution of women to the life of the Church may be recognized always.



Comments


More Green

Global warming right before their eyes, Antarctic scientists share their shock at dramatic changes on icy continent Watch

Image of Moss now grows where glaciers once stood.

By Marshall Connolly (Catholic Online)

Scientists are reporting dramatic changes in Antarctica which they now say they are witnessing firsthand. Entire valleys have lost their ice and vegetation continues to expand. The continent continues to warm and while ice is gaining in East Antarctica, it is not ... continue reading


Climate scientist faces witch hunt after revealing money come from fossil fuel industry Watch

Image of It is important we get the facts of climate change right so we can make science-based decisions, not politically-influenced ones.

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

Science is a hotly debated topic on Capitol Hill, as though scientific theories were subject to political interpretation; nonetheless this time it's Democrats who are leading a witch hunt of sorts against climate skeptics. LOS ANGELES, CA (Catholic Online) - Democrats ... continue reading


NASA warns of 'megadrought' that could cause massive collapse Watch

Image of NASA is warning that the current drought in the Western half of the U.S. will be nothing compared to future droughts that will impact the region.

By Matt Waterson (NEWS CONSORTIUM)

A new study from NASA warns that the United States is going to endure a drought. The likes of which may not have been seen in 1,000 years; the kind of drought that contributed heavily to the fall of per-colonial Native American civilizations and may cause immense ... continue reading


Will the United States run dry? Nation at risk for prolonged drought Watch

Image of Extended drought in the central plains could possibly lead to food shortages and famines.

By Catholic Online (NEWS CONSORTIUM)

A comparative study has found that the American southwest and central plains could face super-droughts the like of which they have not witnessed in over a 1,000 years. In the study, researchers compared earlier droughts with climate simulations for the coming ... continue reading


Sobering reality: Enough plastic trash in ocean to put five bags on trash on every foot of coastline - worldwide Watch

Image of Volunteers collect garbage along the shore off Manila Bay, during an environmental project marking World Oceans Day in Paranaque, Metro Manila in this June 8, 2013.

By Catholic Online (NEWS CONSORTIUM)

Consider this, the next time you discard a plastic water bottle: There is enough plastic debris in the ocean to fill five grocery bags on every foot of every nation's coastline -- around the globe. Those are the sobering statistics are the recent findings of ... continue reading


The 'greatest scientific scandal': Is global warming a scientist-created problem? Watch

Image of Global warming may not be as real as scientists want you to believe, according to weather trending research.

By Abigail James (NEWS CONSORTIUM)

New data research shows much of the global warming trends and temperatures have been tampered with to show a greater increase in warming than actually exists in prime global warming crisis areas, such as in the Arctic. LOS ANGELES, CA (Catholic Online) - "When ... continue reading


Pope Francis Calls Christians to Protect the Gift of Creation: Do Not Fear Papal Letter on the Environment Watch

Image of (Pictured: Pope Francis in a reflective moment) The Catholic Church has been green for a lot longer than any modern environmental movement. We are called to what I call a relational environmentalism; one of stewardship with the earth which God has made and entrusted to us to care for and to share. For those eager to understand Catholic teaching on this vital topic, we should always begin with scripture and tradition. - Deacon Keith Fournier

By Deacon Keith Fournier

Our obligation to live a proper stewardship of the environment is grounded in our obligation to - and solidarity with - one another. It begins with the understanding that we have been given to one another as gifts. In addition, creation is a gift, entrusted to us ... continue reading


As world warms up, Iceland is RISING; soil pushed up by melting icecaps Watch

Image of There is geological evidence in Iceland that during the past deglaciation roughly 12,000 years ago, volcanic activity in some regions of Iceland increased thirtyfold.

By Catholic Online (NEWS CONSORTIUM)

Global climate change has many fearful that nations' coastlines will eventually be washed away to sea. In Iceland, the opposite appears to be true -- The Earth's crust there is rising. LOS ANGELES, CA (Catholic Online) - A recent study has found that as ice melts ... continue reading


You could be the reason fish are vanishing from the oceans! The shocking reality and consequences of harvesting fish into extinction Watch

Image of Researches estimate, oceans may be virtually emptied by 2050.

By Abigail James (NEWS CONSORTIUM)

Fish are rich in omega-3 fatty acids; health experts and doctors consistently urge large consumptions of fish every day. However, the populations of fish are rapidly dropping due to massive amounts of human harvesting. LOS ANGELES, CA (Catholic Online) - The oceans can ... continue reading


OUT OF THIS WORLD VIDEO: Monster leech swallows giant worm caught on camera Watch

Image of Filmed for the first time on Mount Kinabalu, Borneo, for the BBC Two's TV special,

By Catholic Online (NEWS CONSORTIUM)

In an incredible new nature video from the British Broadcasting Company, or BBC, a giant red leech is seen consuming a worm's body in its entirety. In footage that appears beamed in from another planet, the leech searches the worm's body for an end, and begins ... 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, Psalms 79:8, 9, 11, 13
8 Do not count against us the guilt of former ... Read More

Psalm, Psalms 79:8, 9, 11, 13
13 And we, your people, the flock that you pasture, ... Read More

Gospel, Luke 6:36-38
36 'Be compassionate just as your Father is ... Read More

Saint of the Day

Saint of the Day for March 2nd, 2015 Image

Bl. Charles the Good
March 2: In 1086, St. Canute, King of Denmark and father of Blessed ... 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