Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

5/6/2013 (1 year ago)

Catholic Online (www.catholic.org)

Study reveals that males devour older females before coupling.

Conventional wisdom says the female black widow is fond of devouring her mate during his moment of post-coital bliss. However, new research indicates that sometimes, the roles get reversed.

Don't get old, that's the most important rule for black widows it seems.

Don't get old, that's the most important rule for black widows it seems.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

5/6/2013 (1 year ago)

Published in Green

Keywords: black widow, spiders, devour, cannibalization, males


LOS ANGELES, CA (Catholic Online) - It's tough to be a male spider, especially of the black widow species. The moment you fulfill your natural obligation to reproduce, you become your spouse's meal. It's a short and brutal life, and so infamous the species is dubbed the "black widow."

However, researchers who wanted to see just how true this legend was, followed several spiders in a laboratory, only to discover a shocking result.

Sometimes the females became the lunch.

Scientists from Masaryk University in the Czech Republic, studied pairs of black widow spiders in the lab. In their studies, they found a gruesome exception to the female-devours-male rule. Male black widows, typically those which hatch in the summer instead of spring tend to be larger and more aggressive, and are more likely to eat the females they encounter before mating.

The older the female was, the more likely she was to be killed and eaten. Males did not kill females with whom they mated.

This suggests male black widows are choosy about their mates, with a distinct preference for younger females. Those that don't measure up are likely to end up becoming lunch as opposed to spider-moms.

Researchers say not even size or virginity appeared to play a factor in whether or not they got cannibalized by their dates.

Such behavior has not been seen in other spider species, at least not as of yet.

The study is detailed in the current issue of Behavioral Ecology and Sociobiology.

---


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, Isaiah 1:10, 16-20
10 Hear what Yahweh says, you rulers of Sodom; listen ... Read More

Psalm, Psalms 50:8-9, 16-17, 21, 23
8 'It is not with your sacrifices that I find fault, ... Read More

Gospel, Matthew 23:1-12
1 Then addressing the crowds and his disciples Jesus ... Read More

Saint of the Day

Saint of the Day for March 3rd, 2015 Image

St. Katharine Drexel
March 3: Saint Katharine Drexel, Religious (Feast Day-March 3) 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