Cooking, Evolution, and Brain Growth Anthropology Education 

Cooking, Evolution, and Brain Growth

Cooking establishes the difference between animals and people. In fact, we’re not the only social animals that sit down to eat together, but we are the only ones who cook. But how is cooking linked to human brain’s growth and evolution? This is a video from Dr. Joe Hanson’s It’s Okay To Be Smart series. Cooking helped humans strengthen social bonds and cooperation. Although our brain uses one-fifth of the calories that we eat, we spend only 5 percent of our daily lives eating, while Chimpanzees and Gorillas spend more than half…

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Why Are Eggshells So Strong? Animals Biology 

Why Are Eggshells So Strong?

By Kate Stone @GotScienceOrg Anyone who has a tried to squeeze a chicken egg from end to end knows how strong eggshells are. Not much in nature mineralizes as quickly as a bird egg. How is it that fertilized chicken eggs manage to resist fracture from the outside while, at the same time, can be broken open from the inside by a tiny chick? It’s all in the eggshell nanostructure, according to a new study led by McGill University scientists and published in the journal Science Advances. For millions of…

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Plastic Pollution: An Emerging Threat Beneath Our Feet Biology Environment Health 

Plastic Pollution: An Emerging Threat Beneath Our Feet

By Emily Rhode @riseandsci Tiny plastic particles that can barely be seen by the human eye have made their way from our soil into everyday items we know—from earthworms to honey to the beer that we drink—bringing toxic chemicals with them wherever they go. The saying goes that what we can’t see can’t hurt us. Yet, what if these unseen particles are not only hurting us but also changing the entire course of biological evolution? Researchers in Germany have issued a new warning that these human-generated “microplastics” could potentially be…

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Fire Management in California's Chaparal: The U.S. Army Corps of Engineers Sacramento District conducted a controlled burn of central marine chaparral at Fort Ord, Calif., Oct. 15, to expose unexploded ordnance at the formerly utilized defense site. The burn, carefully coordinated with local agencies, lasted less than two hours and was timed so that prevailing winds would help blow the smoke away from population centers. The controlled burns are part of a comprehensive ordnance removal program at Fort Ord, which closed in 1994 under recommendation from the Base Realignment and Closure Commission. (U.S. Army photo/Released) Animals Biology Environment 

Fire Management in California’s Chaparral Harms Birds

By Neha Jain @lifesciexplore California suffered its largest and most destructive wildfires in 2017. Victims included hundreds of wild animals. When the blazing fires were finally extinguished, the surviving animals—including birds—were forced to find new homes. Now, for the first time, researchers investigating the effect of fire management practices on birds in California’s chaparral have found that one practice known as mastication, which consists of mechanically crushing vegetation to remove fuel, threatens bird communities. “The best available science tells us that managing chaparral imperils wildlife and increases fire risk,” says…

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What’s Jupiter Hiding? Astronomy Technology 

What’s Jupiter Hiding?

By Steven Spence @TheStevenSpence Juno: Aptly named The Juno spacecraft currently orbiting Jupiter is appropriately named. In Roman mythology, Jupiter created a veil of clouds to hide his escapades with Io from his wife, Juno, but Juno was able to peer through the clouds and foil his plan. The Juno spacecraft, currently on its 11th science orbit[1] of Jupiter, is designed to see through Jupiter’s clouds, revealing secrets of the planet’s atmosphere and interior. Boldly going on a five-year mission Juno launched on August 5, 2011, from Cape Canaveral aboard…

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Honeybees Are Attracted to Fungicides and Herbicides Animals Environment 

Honeybees Are Attracted to Fungicides and Herbicides

By Neha Jain @lifesciexplore Whenever you eat fruits, vegetables, and nuts, take a moment to thank honeybees for their pollination services that contribute $17 billion to the US economy each year. In fact, almonds are almost solely dependent on honeybees for pollination. Populations of these much-needed pollinators have mysteriously plunged over the past decade, and many studies suggest a link to the use of neonicotinoid insecticides among other factors such as climate change and disease. Recently, scientists found that honeybees prefer sugar water laced with the fungicide chlorothalonil and the…

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Why Do Humans Have Thumbs and Not Fins? Biology Education Paleontology Videos 

Why Do Humans Have Thumbs and Not Fins?

Did you know we can trace the evolution of our hands, and thumbs, back to a 375 million-year-old fish called Tiktaalik? Watch this video with paleontologist and geneticist Dr. Neil Shubin to learn what a fish and a little blue hedgehog can teach us about the evolution of thumbs. This is a video from Dr. Joe Hanson’s It’s Okay To Be Smart series.     Tiktaalik is a 375 years-old fish with fins. When we look under its fin rays and take off the scales, what we find are versions of our…

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How Have Snapping Shrimp Evolved to Snap? Archaeology Biology 

How Have Snapping Shrimp Evolved to Snap?

By Hallie Macdougal By using computer modelling and 3-D printing and mapping evolutionary trees, researchers at the University of Alberta have discovered a possible evolutionary pathway that shows how snapping shrimp have evolved to “snap.” Snapping shrimp, also known as pistol shrimp or alpheid shrimp, compete with whales for the title of loudest animal in the ocean. To make noise, snapping shrimp are able to close their claws incredibly fast, which shoots a stream of water so quickly that new water from above doesn’t have time to replace it, creating…

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California’s Urban Forests Have Lowest Tree Cover per Resident Botany Environment 

California’s Urban Forests Have Lowest Tree Cover per Resident

By Neha Jain @lifesciexplore California’s urban forests are not just a pretty sight; they are an asset valued at a whopping $181 billion, finds a new study. But, according to the study, the state’s urban tree cover at 90.8 square meters (109 square yards) per city resident is the lowest among all US states. The good news is that there are 236 million spots available for more trees to be planted. The study finds that urban forests cover 15 percent of the urban area in California, consisting of 173 million…

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language detectives Videos 

Language Detectives

Where did the Uto-Aztecan language originate? An interdisciplinary research project looked at a set of 100 words to understand the sound sequences of this language. Watch this video to see how an anthropologist and a computational biologist carried out this research. This is another in the Shelf Life series from the American Museum of Natural History. Museum curators Peter Whiteley, an anthropologist, and Ward Wheeler, a computational biologist, joined forces to trace the evolution of Native American languages by applying gene-sequencing methods to historical linguistics. I became fascinated by the idea…

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