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 May 2015
Universal:
That, rejecting the culture of indifference, we may care for our neighbours who suffer, especially the sick and the poor.
Evangelization: That Mary's intercession may help Christians in secularized cultures be ready to proclaim Jesus.


Rosaries, Crosses, Prayer Cards and more... by Catholic Shopping .com


Comments


More Green

Unexpected find in Washington may be last of its kind Watch

Image of This is the group of dinosaurs the Tyrannosaurus Rex is associated with.

By Nikky Andres (NEWS CONSORTIUM)

When an inter-tidal rock was found in the Sucia Island State Park in Washington State back in 2012, its discoverers had no idea that it would create or cause such excitement and hype. Embedded in the rock is a 17-inch bone fragment, that could not be immediately ... continue reading


DEVASTATING photos show humanity's destruction of Planet Earth Watch

Image of This bird ate too much plastic trash and died, revealing its unnatural diet upon decomposition.

By Catholic Online (NEWS CONSORTIUM)

Humanity's rapid expansion as the global population increases is taking its toll on the environment. Climate change, overpopulation, pollution, hunting of endangered species and strip mining are running rampant worldwide. A series of shocking photographs now ... continue reading


TOO SOON? Canonization of Mother Teresa next year only hypothetical, Vatican says Watch

Image of There had been reports in the Italian press that Mother Teresa, the founder of the Missionaries of Charity, who worked among the poorest of the poor, would be canonized before the end of the upcoming Holy Year of Mercy.

By Catholic Online (NEWS CONSORTIUM)

In spite of various published reports that Blessed Teresa of Kolkata will be canonized on September 4, 2016, the Vatican says that this remains hypothetical. "It is a working hypothesis, therefore there is no official confirmation to be given," Vatican representative ... continue reading


2020: Antarctic ice shelf could collapse Watch

Image of Land-based glaciers that have also started to slide faster toward the sea.

By Catholic Online (NEWS CONSORTIUM)

The rich get richer, the poor get poorer and those polar ice caps keep right on melting. Things have deteriorated so badly - especially the Larsen B ice shelf, that scientist now fear the entire Antarctica ice shelf will collapse by the end of this decade, in ... continue reading


Raining spiders? Large areas of Australia covered in spider webs Watch

Image of Baby spiders

By Atarah Haely (NEWS CONSORTIUM)

The worst news for spider haters in Australia and around the globe: a natural migration phenomenon where baby spiders are flying is possible and has recently happened in the southern part of Australia. MUNTINLUPA, PHILIPPINES (Catholic Online) - Referred to as "Angel ... continue reading


HONEY HOLOCAUST: Forty percent of all beehives died in the past year Watch

Image of Oklahoma, Illinois, Iowa, Delaware, Maryland, Pennsylvania, Maine and Wisconsin all saw more than 60 percent of their hives die since April of last year.

By Catholic Online (NEWS CONSORTIUM)

It is an alarming figure that may speak of a silent, ecological disaster. According to a federal study, more than two out of five American honeybee colonies died in the past year. LOS ANGELES, CA (Catholic Online) - The survey reports that the worst die-off ... continue reading


Recreating Dinosaurs: Using chicken embryos, scientists learn how dinosaurs got 'snouts' Watch

Image of The team's aim was to understand how the bird beak evolved, because the beak is such a vital part of bird anatomy.

By Catholic Online (NEWS CONSORTIUM)

An asteroid, crashing into the Earth 65 million years ago, is thought to have caused the dinosaurs to go extinct. A group of dinosaurs managed to survive, and is thought to have evolved into modern-day birds. That theory has been around since the 19th Century. ... continue reading


Catfish surprisingly climbs wall and stuns scientists Watch

Image of

By Atarah Haely (NEWS CONSORTIUM)

Inside a cave near Tena in Ecuador, a group of scientists filmed a catfish climbing up the wall to lick food from the roof. Climbing seems impossible for fishes, but evidence of an actual video showing an armored catfish making its way up the cave wall presents a new ... continue reading


Climate change to cause animal extinction in next century Watch

Image of New Zealand's tuataras will be one of the species affected by climate change.

By Nikky Andres (NEWS CONSORTIUM)

In the next century or so, one in six species of plants and animals are likely to be extinct in South America, New Zealand, and Australia. Species in North America are at a lower risk of being extinct. MUNTINLUPA, PHILIPPINES (Catholic Online) - According to a study ... continue reading


'Empty landscapes': Massive herbivore extinction in Southeast Asia hurts environment Watch

Image of

By Talia Ramos (NEWS CONSORTIUM)

Oxford University researchers observed a rapid decline among large herbivores living in the rainforests, savannah and jungles located in Southeast Asia, as well as in India and Africa. MUNTINLUPA, PHILIPPINES (Catholic Online) - According to the experts, this ... 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, Acts 25:13-21
13 Some days later King Agrippa and Bernice arrived ... Read More

Psalm, Psalms 103:1-2, 11-12, 19-20
1 [Of David] Bless Yahweh, my soul, from the depths ... Read More

Gospel, John 21:15-19
15 When they had eaten, Jesus said to Simon Peter, ... Read More

Saint of the Day

Saint of the Day for May 22nd, 2015 Image

St. Rita
May 22: St. Rita was born at Spoleto, Italy in 1381. At an early age, ... 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