Bats Can Navigate using Polarized Light
by Sid Perkins
Forget the phrase “blind as a bat.” New experiments suggest that members of one species of these furry flyers—Myotis myotis, the greater mouse-eared bat—can do something no other mammal is known to do: They detect and use polarized light to calibrate their long-distance navigation.
Previous research hinted that these bats reset their magnetic compass each night based on cues visible at sunset, but the particular cue or cues hadn’t been identified. In the new study, researchers placed bats in boxes in which the polarization of light could be controlled and shifted.
After letting the bats experience sundown at a site near their typical roost, the team waited until after midnight (when polarized light was no longer visible in the sky), transported the animals to two sites between 20 and 25 kilometers from the roost, strapped radio tracking devices to them, and then released them…
(read more: Science News/AAAS)
photo by Top-Pics/TBK
Sadleria cyatheoides (Polypodiales - Blechnaceae), better known as ʻAmaʻu, is a species of fern endemic to the Hawaiian Islands.
This plant can appear as a large, low-growing fern with a creeping rhizome or as a tree fern with an upright, trunk-like rhizome. The new leaves are a distinctive flame-like red to orange color.
The young leaves and the starchy core of the trunk (a traditional Hawaiian famine food) are edible if cooked. This species had many traditional uses among early Hawaiians
Photo credit: ©David Eickhoff
This multi-colored spotted beetle is the Flatheaded borer, Chrysobothris chrysostigma (Coleoptera - Buprestidae), an European saproxylic beetle whose larvae live under the bark of the trunks of spruce.
Photo credit: ©Andrea Hallgass | Locality: Cimolais, Friuli-Venezia Giulia, Italy
Basically I got an ask from iseebeautyeverywhere asking about science book recommendations. I got a bunch of replies. I’ve collected the replies and compiled a rough list of the recommendations so far. Enjoy!
If you’d like to add any, let me know.
A Sea of 4.5 Million Baby Blue Eye Flowers in Japan’s Hitachi Seaside Park
I am just carbon and bad timing.
It’s unfortunate how many people didn’t take this message away from the debate.
Bill Nye was just SO ENTHUSIASTIC about the topic. You could tell.
For God’s sake, the man was trying to teach people about photosynthesis when asked what his favourite colour was. That’s a man that ADORES science and absolutely loves teaching people.
Suddenly, I was 12 and watching a Bill Nye The Science Guy episode at my grandma’s school while she was decorating the gym.
Bill Nye is like the Mister Roger’s of science
he legitimately cares about what he is talking about and enthusiastically encourages people to take something positive away from it
Bill Nye is the Mister Rogers of science
Bob Ross is the Mister Rogers of art
and Mister Rogers is… well, Mister Rogers
what if they could join forces
Mathematics is like oxygen. If it is there, you do not notice it. If it would not be there, you realize that you cannot do without.