Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

7/23/2014 (11 months ago)

Catholic Online (www.catholic.org)

Polarized light used by bats to navigate

Polarized light may be a useful tool for bats to navigate, and the greater mouse-eared bat-Myotis myotis-is the first mammal known to navigate using polarized light.

Bats can see with polarized light, and may use it to navigate with, a new study says.

Bats can see with polarized light, and may use it to navigate with, a new study says.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

7/23/2014 (11 months ago)

Published in Green

Keywords: Science, International


LOS ANGELES, CA (Catholic Online) - Polarized light is light waves that are parallel to each other and vibrate on a single plane. These bats use the polarized rays at sunset to calibrate their internal compass and fly in the right direction, according to a study published in the journal Nature Communications on July 22.

You can bring a light into the darkness with "prayer and action."


"Every night through the spring, summer and autumn, bats leave their roosts in caves, trees and buildings to search for insect prey," said Stefan Greif, a biologist at Queen's University Belfast in Northern Ireland and co-author of the study.

These bats often fly hundreds of miles in a single night, returning to their homes prior to sunrise to avoid predators, "but, until now, how they achieved such feats of navigate wasn't clear," Greif said.

Bats are one well known example of animals using echolocation to sense prey, communicate and navigate while flying, but this sense only extends to about 160 feet, so the researchers thought the animals had to be using another sense to see farther ahead.

Greif and his team showed that 70 adult female bats two different polarization patterns at sunset, then they released them at two different locations in Bulgaria at one in the morning-when there was no polarization visible-about 12 to 16 miles from their home roosts.

Using radio transmitters, the team tracked the animals' movements. The bats shown shifted polarized light flew at a ring angle to the direction of bats shown unshifted polarized light, suggesting that polarized light is used to guide their flight.

While the study did show a direct connection between bat navigation and polarized light, researchers are unsure of how the bats detect the light waves. "We don't know which structure these bats might be using," said the study's co-author, Richard Holland in a statement.

---


Pope Francis: end world hunger through 'Prayer and Action'


Copywriter 2015 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for June 2015
Universal:
That immigrants and refugees may find welcome and respect in the countries to which they come.
Evangelization: That the personal encounter with Jesus may arouse in many young people the desire to offer their own lives in priesthood or consecrated life.


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


Comments


More Green

No longer little green men? Aliens may look more like us than traditionally believed Watch

Image of

By Talia Ramos (NEWS CONSORTIUM)

People have been conditioned to believe extraterrestrial life, or aliens, will look nothing like us. Aliens are commonly shown with large heads on tiny bodies with a pair of saucer-like eyes. They have long, thin arms and limbs, with the number of fingers being more or ... continue reading


TIME TO ACT: Vatican's Secretary of State says world leaders must heed Pope's encyclical Watch

Image of Cardinal Parolin spoke on the importance of

By Elise Harris, CNA/EWTN News

Cardinal Pietro Parolin, the Vatican's Secretary of State, has expressed his hope that Pope Francis' recent environmental encyclical will have a strong impact on the United Nations' three major gatherings this year, and will inspire global powers not only to ... continue reading


DWARF Cows: Are they the answer to farmers' climate change problems? Watch

Image of

By Talia Ramos (NEWS CONSORTIUM)

Summer months bring an intense heat to farmlands and drought stricken parts of the world. The heat from the sun can damage not only crops that need regular water supply, but will also cause sickness, dehydration and death to farm animals. MUNTINLUPA, PHILIPPINES ... continue reading


San Francisco hit with a stinkier side of the California drought as sewer pipes deteriorate Watch

Image of [Mike Koozmin/S.F. Examiner file photo]

By Hannah Marfil (NEWS CONSORTIUM)

The severe drought in California has recently alarmed residents of San Francisco, as its century-old sewer system takes a serious hit. Contrary to the popular belief that the drought might give the sewers a break, as it is expected to facilitate less water, it ... continue reading


Mysterious fireball of space junk flies over the South Watch

Image of

By Atarah Haely (NEWS CONSORTIUM)

A mysterious object lit up in the sky on June 29 in the southeast. The source has since been confirmed as a space junk passing by and reentering our atmosphere. Sightings of the "fireball" were taken to social media, where people tried to guess whether it was a ... continue reading


Californians struggle to find 'normal life' without water Watch

Image of The lack of a sufficient water source in parts of California damages agricultural farmlands

By Linky C. (NEWS CONSORTIUM)

A normal life remains to be far-fetched for residents in the town of Monson, CA, located 200 miles from the northern part of Los Angeles. Residents in the area have already spent four gruesome months without running water in their homes. The four years of drought ... continue reading


NEW FURRY CRITTER: Hairy-chested crab found trolling at over 7000 feet deep in Antarctic hydrothermal vents identified Watch

Image of The Kiwa tyleri must spend its days in observance of these delicate laws of nature. If they get too close to the vent they will be scalded, but if they stray too far they freeze.

By Catholic Online (NEWS CONSORTIUM)

The Kiwa tyleri is a furry breed of crab that is only found in the hydrothermal vents in Antarctica. The species can only thrive in water that is between 945 and 104 degrees in Antarctica - making it rare indeed. Growing to only two inches in length, the Kiwa ... continue reading


What ALL Americans need to know about the California drought Watch

Image of California grows and exports a majority of the fruits and nuts eaten by the rest of the country, so water shortages there affect food supply everywhere.

By Catholic Online (NEWS CONSORTIUM)

The water shortage in California, now dragging into its fourth year is being categorized as "extreme to exceptional drought." Everyone, including all western U.S. states is now expected to conserve - and not just in California. Below are the facts that everyone in the ... continue reading


Scientists discover amazing corals that adapt to climate change Watch

Image of The Coral Reef Southern Red Sea near Safaga Egypt.

By Atarah Haely (NEWS CONSORTIUM)

Scientists have cross-bred corals coming from different latitude with variety of temperatures underwater and found that there are some corals that adapt better in climate change than others. With the rapid decline of coral reefs, experts are hoping that this new ... continue reading


Life on Mars: Are humans one step closer to living on Mars? Watch

Image of Is this the future home for humans?

By Hannah Marfil (NEWS CONSORTIUM)

With the pressing idea that humans have to find suitable life outside Earth in mind, many projects and experiments are being conducted to find a livable environment on Mars. The planet is not yet suitable to live on but a new project suggests that they may have the ... 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 32:23-33
23 That same night he got up and, taking his two ... Read More

Psalm, Psalms 17:1, 2-3, 6-7, 8, 15
1 [Prayer Of David] Listen, Yahweh, to an upright ... Read More

Gospel, Matthew 9:32-38
32 They had only just left when suddenly a man was ... Read More

Saint of the Day

Saint of the Day for July 7th, 2015 Image

Bl. Ralph Milner
July 7: English martyr. He was born at Stocksteads, Hampshire, and was a ... 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