In the spring, Rufous Hummingbirds journey from Mexico to the northwest U.S., some as far north as Alaska! That’s almost 1000 miles one way for a bird measuring just under four inches beak to tail, making this the longest migration of any bird relative to body length. Not long after arriving, they bulk up on nectar and bugs for the scenic return trip over the Rocky Mountains.
Daily Archives: September 1, 2021
Previews: New Scientist Magazine – September 4
Walks: Santa Margherita Ligure, Northwest Italy
Santa Margherita Ligure is a comune in the Metropolitan City of Genoa in the Italian region Liguria, located about 35 kilometres southeast of Genoa, in the area traditionally known as Tigullio. It has a port, used for both tourism and fishing activities.
Science: Dead Trees Giving Off CO2, Massive Stars, Melting Ice & Biodiversity
How insects help release carbon stored in forests, and the upcoming biodiversity summit COP 15.
In this episode:
00:44 Fungi, insects, dead trees and the carbon cycle
Across the world forests play a huge role in the carbon cycle, removing huge amounts of carbon dioxide from the atmosphere. But when those trees die, some of that carbon goes back into the air. A new project studies how fast dead wood breaks down in different conditions, and the important role played by insects.
Research Article: Seibold et al.
09:37 Research Highlights
Massive stars make bigger planets, and melting ice moves continents.
Research Highlight: Why gassy planets are bigger around more-massive stars
Research Highlight: So much ice is melting that Earth’s crust is moving
12:04 The UN’s Convention on Biological Diversity
After several delays, the fifteenth Conference of the Parties (COP 15) to the United Nations Convention on Biological Diversity, is now slated to take place next year. Even communicating the issues surrounding biodiversity loss has been a challenge, and reaching the targets due to be set at the upcoming meeting will be an even bigger one.
Editorial: The scientific panel on biodiversity needs a bigger role
19:32 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, cannibal cane toads and a pterosaur fossil rescued from smugglers.
Nature News: Australia’s cane toads evolved as cannibals with frightening speed
Research Highlight: A plundered pterosaur reveals the extinct flyer’s extreme headgear
National Geographic: Stunning fossil seized in police raid reveals prehistoric flying reptile’s secrets
Analysis: Is America In Another Housing Bubble?
Home prices in the U.S. have climbed at a record pace during the pandemic. The median home price reached over $363,000 in June 2021, a 23.4% increase from 2020. Many of the houses are being sold above their asking price, often entirely in cash with bidding wars becoming the new norm to weed out the competition. So is America currently in another housing bubble and what are the signs that can help investors predict an oncoming crash?
Previews: Long Weekends Magazine – Fall/Winter ’21
Walking Tour: Sélestat – Northeast France (4K)
Sélestat is a commune in the Bas-Rhin region of Alsace in north-eastern France. Sub-prefecture and seat of the community of communes of Sélestat, it had 19,360 inhabitants at the last census in 2018, which made it the fifth commune of Bas-Rhin and the eighth Alsatian commune in number of inhabitants. Its inhabitants are called Sélestadiens and Sélestadiennes. Located in the plain of Alsace, at the foot of the Vosges, the town is crossed by the Ill and its territory is largely covered by the wetlands of the Grand Ried.
London Design: Building ‘Gotham City’ Skyscraper
It’s the skyscraper London deserves, and the one it needs right now. Here’s how the team are making it happen – https://bit.ly/3t3rp7y
Views: The Scientist Magazine – Sep 2021
Diabetes: Understanding Insulin And Islets (Video)
Type 1 and type 2 diabetes are characterized by increased blood glucose levels. They affect almost half a billion people around the globe, and this number is projected to rise as we reach the middle of the century. In most individuals, blood glucose levels are kept within a healthy range by a hormone called insulin, which is secreted by the pancreas, but this fine-tuned regulation can go wrong in type 1 and type 2 diabetes. In this animation, we lay out our current understanding of these diseases and explore active areas of research that aim to restore the body’s blood glucose control.
Read more in https://www.nature.com/articles/d4285…
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