Emma Lingan and Eric Cruikshank discuss Washington Capitals center Dylan Strome, the Bruins and Red Wings coaches, Kirill Kaprizov's next contract and much more.

Members of 30 different state and national advocacy groups and unions are meeting in Washington, D.C., for the Grassroots Assembly for Child Care and Early Education.

Many schools that have recently opened their doors are already seeing COVID-19 cases among students and staff. Should that shake the confidence of other school leaders who are planning to reopen?

Mahsa Altafi
Oct 23, 2024; 44:e0518242024-e0518242024
Systems/Circuits

Neural circuits supporting innate behaviors, such as feeding, exploration, and social interaction, intermingle in the lateral hypothalamus (LH). Although previous studies have shown that individual LH neurons change their firing relative to the baseline during one or more behaviors, the firing rate dynamics of LH populations within behavioral episodes and the coordination of behavior-related LH populations remain largely unknown. Here, using unsupervised graph-based clustering of LH neurons firing rate dynamics in freely behaving male mice, we identified distinct populations of cells whose activity corresponds to feeding, specific times during feeding bouts, or other innate behaviors—social interaction and novel object exploration. Feeding-related cells fired together with a higher probability during slow and fast gamma oscillations (30–60 and 60–90 Hz) than during nonrhythmic epochs. In contrast, the cofiring of neurons signaling other behaviors than feeding was overall similar between slow gamma and nonrhythmic epochs but increased during fast gamma oscillations. These results reveal a neural organization of ethological hierarchies in the LH and point to behavior-specific motivational systems, the dysfunction of which may contribute to mental disorders.

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Sometimes, in fact, nature is stranger than fiction

Our host explains why you should never say ‘no’ to a hungry pregnant woman

Sometimes, in fact, nature is stranger than fiction

The cheetah cubs will be named after the fastest male and female American Olympic athletes in the 100-meter dash at the London Olympics.

From the moment they arrived at the concentration camp, Jews and other Holocaust victims were treated like animals, and only a lucky group survived the experience.

The science behind going belly up

In the 1920s, the U.S. was in full thrill-seeking mode. From horse-diving (you have to see it to believe it) to barnstorming. And at the center of many of these activities were a group of daring young women.

Sometimes, in fact, nature is stranger than fiction

Gasp! The answer will amaze you. Still Image Credit: MaFelipe / iStock

Paul Raffaele explores gorilla tourism, raising gorillas in captivity and the future of the Congo mountain gorillas

Sometimes, in fact, nature is stranger than fiction

When it comes to bird calls, every chirp, trill, and warble tells a story. From eerie screeches to melodic tunes, these distinctive sounds from nature are sure to surprise you. --- For more videos from Smithsonian Magazine: https://www.smithsonianmag.com/videos/ Digital Editorial Director: Brian Wolly Supervising Producer: Michelle Mehrtens Producer: Nicki Marko Video Producer: Sierra Theobald Video Editor: Michael Kneller Script: Michelle Mehrtens, Michael Kneller Audio provided by the Macaulay Library at Cornell Lab

When the blaze in Moscow subsided on September 18, 1812, the French—who had traveled hundreds of miles into Russia—were left without vital resources as a brutal winter approached

Female worker bees, which forage for the whole colony, struggle more to detect scents in the heat than males do, per the recent research

The world’s slowest mammal is at risk of extinction by the end of the century due to their low metabolic rate and climate change

A pair of 3-year-old giant pandas—a male named Bao Li and a female called Qing Bao—have officially arrived at the Zoo, where they will first acclimate to their new home

The notorious predators, nicknamed the “Man-Eaters of Tsavo,” terrorized railway workers in Kenya for roughly nine months

Using advanced imaging techniques, researchers discovered modern glue, drill holes and even a fragment of a drill bit in the pastiches

Two comb jellies can merge their digestive and nervous systems and even sync their bodily functions, according to new research. The discovery could have implications for human medicine

A scientist used at-home experiments to test whether cats hesitated when moving through increasingly shorter or narrower openings

After a years-long restoration, the unique device that recorded hits like "Come Together" and "Here Comes the Sun" is now fully functional

In a rare technique among mammals, the bats burn proteins from blood, rather than carbs or fat, to power their pursuits of prey, according to a new study

Pedestrians in Montreal, Grand Rapids and other locations can time-travel thanks to installations that map historical scenes directly onto the cityscapes

A new exhibition at the British Library explores the public, private and spiritual lives of such figures as Joan of Arc, Christine de Pizan and Hildegard of Bingen

In the Jim Crow South, activists became martyrs at the hands of white racists, all for the just cause of using the vote to fight for equality and freedom

Hospice Northwest Services is inviting people to visit its third annual photography exhibit, "A Personal Lens on Grief." Here's what the project in Thunder Bay, Ont., entails, and why staff say it's important to find creative ways to express loss.

The P.E.I. Woodlot Owners Association is encouraging its members to boost the biodiversity of their woods with different varieties of trees and shrubs. As CBC's Nancy Russell reports, the goal is to provide habitat for endangered species and protect the forests from future disasters like post-tropical storm Fiona.

A recent study out of the University of Calgary estimates that more than 10 million Canadians are being exposed to high levels of radon, an odourless, tasteless radioactive gas that is the second leading cause of lung cancer in the country.

That Figure Skating Show recaps the short program in the pairs event at Canadian Nationals, where the reigning champs are letting their presence be known.

Extensive automation of time-consuming tasks gives designers fast, accurate tools for testing their ideas

Competition sponsored by SOLIDWORKS and

Effie Award Recognizes Marketing Company Small Army and DS SolidWorks for ‘3 Dudes Gone 3D’ Campaign

Team Competing in Race Back to the Moon

Stories Prove Importance of 'Introduce a Girl to Engineering Day'

OMer Richard Sharp teaches practical and relevant methods of sharing the Gospel with Portuguese young people at a youth camp.

A village builds their own school - a big first for the area and a step in transforming the community.

OMers help Hungarian children uncover their gifts through drama camp.