Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

7/23/2014 (1 year 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 (1 year 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 July 2015
Universal:
That political responsibility may be lived at all levels as a high form of charity.
Evangelization: That, amid social inequalities, Latin American Christians may bear witness to love for the poor and contribute to a more fraternal society.



Comments


More Green

Massive solar storm offers Earth ONLY 12 HOURS of preparation when it happens Watch

Image of Solar flares may reach the Earth after 18 hours upon erupting and could cause coronal mass ejection.

By Linky C. (NEWS CONSORTIUM)

The world will only get 12 hours to prepare for a possible huge explosion of high energy from the sun. GPS systems will go down, shipping will be affected and blackouts will occur in several areas. The massive solar phenomenon may bring coronal mass particles to the ... continue reading


After zoo death, only four white rhinoceros left on Earth Watch

Image of Called Nabire, the female rhinoceros died at the Dvur Kralove Zoo after suffering complications from the rupture of a large cyst. The life span of a white rhino is 40 or 50 years.

By Catholic Online (NEWS CONSORTIUM)

With the death of a 31-year-old female white rhinoceros in a Czechoslovakian zoo, the future of the endangered species is nil. Only four such creatures of this subspecies now exist in the world, with a single male, at 42 years of age, too old to breed. LOS ANGELES, CA ... continue reading


More discoveries about Pluto: New Horizons finds second icy mountain range and new moon Watch

Image of

By Talia Ramos (NEWS CONSORTIUM)

Many people around the world have been celebrating the successful flyby, from the New Horizons NASA program, to the farthest planet in the solar system, Pluto. After the initial success and discovery of the first icy mountain range, the spacecraft found another equally ... continue reading


California farmers given mandate: Stop pumping form the San Joaquin River Watch

Image of A group of farmers has now been ordered to stop pumping water from a branch of the San Joaquin River. The severe measure was in order to protect waterways that are going dry during its drought.

By Catholic Online (NEWS CONSORTIUM)

They were given multiple warnings, but now its official. The State Water Resources Control board has issued a cease and desist order against an irrigation district that has been draining the San Joaquin River. The district has repeatedly failed to obey a ... continue reading


Unusual, new winged dinosaur fossil unearthed in China Watch

Image of

By Hannah Marfil (NEWS CONSORTIUM)

An almost complete fossil of a feathered bird-like dinosaur was dug up by scientists in northeastern China. Although the creature has wings, they doubt it could really fly, due to its proportion. Scientists speculate the wings were used similarly to the peacock. This ... continue reading


Pluto finally exposed: Pictures from Pluto reach Earth after amazing NASA mission Watch

Image of Images of Pluto, the lone dwarf planet is finally revealed to humankind

By Linky C. (NEWS CONSORTIUM)

Pluto has finally revealed itself to humankind, after being a mystical planet located beyond the depths of the Milky Way for so long. NASA's New Horizons spacecraft has finally sent images of Pluto to Earth last Tuesday. With the lone planet, located 3 billion miles ... continue reading


El Nino to the rescue: Is relief for drought-stricken California on its way? Watch

Image of

By Talia Ramos (NEWS CONSORTIUM)

Over the years, El Nino has provided relief to drought-stricken areas in the U.S. The current weather forecast predicts hotter and drier weathers will be felt in the eastern part of the world, concerning Australia, Asia and the majority of the Pacific while wetter ... continue reading


Carnivorous plant quits insect-killing ways to become 'bat landlord' Watch

Image of A special species of bat - the Hardwicke's woolly bat-roost inside the plants, and nowhere else. Bat babies were often found snuggled next to their parents.

By Catholic Online (NEWS CONSORTIUM)

A most unconventional living arrangement has been struck in the jungles of Borneo. The carnivorous plant, Nepenthes hemsleyana lures bats to nest in its pitcher-shaped leaves. The bats are left undigested, and as part of their agreement, the bats defecate their ... continue reading


Will El Nino bring relief to drought-stricken California? Watch

Image of The State of California, along with the rest of the United States, that is reliant on California's crops to feed it, is praying for rain to end the state's worst drought in history.

By Catholic Online (NEWS CONSORTIUM)

The State of California, along with the rest of the United States, that is reliant on California's crops to feed it, is praying for rain to end the state's worst drought in history. Scientists say that El Nino weather patterns could mean more rain down the line - or ... continue reading


Mysterious massive bird migration leaves popular bird location a dead zone Watch

Image of Empty eggs were all that could be found in the once popular bird location.

By Atarah Haely (NEWS CONSORTIUM)

Thousands of birds have left the Seahorse Key abruptly, leaving their nests and eggs behind. The mysterious phenomena has left scientists and bird watchers puzzled, especially when they found that the place is negative from any contamination. Biologists explain that ... 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, Exodus 16:2-4, 12-15
2 And the whole community of Israelites began ... Read More

Psalm, Psalms 78:3-4, 23-24, 25, 54
3 What we have heard and know, what our ancestors ... Read More

Gospel, John 6:24-35
24 When the people saw that neither Jesus nor his ... Read More

Reading 2, Ephesians 4:17, 20-24
17 So this I say to you and attest to you in the ... Read More

Saint of the Day

Saint of the Day for August 2nd, 2015 Image

St. Eusebius of Vercelli
August 2: Christians who breathed a sigh of relief when Constantine ... 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