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Beetle keeps rivals off scent of food buried for offspring
<p>Some beetles go to great — and disgusting — lengths for their children.</p>
<p>They scout for a dead mouse or bird, dig a hole and bury it, pluck its fur or feathers, roll its flesh into a ball and cover it in goop — all to feed their future offspring.</p><p>Now scientists think that goo might do more than just slow decay. It also appears to hide the scent of the decomposing bounty and boosts another odor that repels competitors.</p><p>“It helps them to hide their resource from others,” said Stephen Trumbo, who studies animal behavior at the University of Connecticut and led the new research, published Thursday in The American Naturalist. “They try to keep everyone away.”</p><p>The beetles — called burying beetles — aren’t the only creatures who try to deceive their competitors or prey with subtle, sneaky tactics. Large blue butterflies, for example, will imitate certain sounds to manipulate ants. Corpse flowers produce rotting odors to attract insect pollinators that feed on decomposing matter.</p><p>The importance of these interactions are being recognized more and more, said Alexandre Figueiredo, a biologist at University of Zurich, who was not involved in the new study.</p><p>Burying beetles and other things that feed on dead animals — including vultures, opossums and maggots — race each other to track down carcasses. Competition is stiff even among burying beetles, which use special antennae to detect the remains from afar.</p><p>Burying beetles are relatively large, about an inch long, and black with orange markings. The gut secretions they spread on a carcass are antibacterial, and slow down decomposition. Trumbo and his colleagues wondered whether they also prevented rivals from picking up the scent.</p><p>To find out, they collected the gases wafting off dead hairless mice preserved by a kind of burying beetle that is found in forests across North America. The researchers then compared the gases to those from untouched carcasses. </p><p>The beetle-prepped ones gave off much less of an onion-smelling compound that usually attracts burying beetles to fresh remains. They also discovered an increase in another gas from decay that’s known to deter other insects that feed on dead animals.</p><p>Next, they dropped off the dead mice in a Connecticut forest. They found the beetle’s rivals were less likely to discover the ones covered in goop.</p><p>“If you can deter other scavengers, even for a little bit of time, it can buy you a lot,” said Daniel Rozen, a biologist at Leiden University in the Netherlands who was not involved in the new study.</p><p>___</p><p>Follow at @MarionRenault on Twitter</p><p>___</p><p>The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.</p><p>Copyright 2021 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.</p><p><strong><a href=””></a></strong> <a href=””>(Why?)</a></p>
Sun, 17 Jan 2021 14:13:20 +0000 Washington Post

Local food drive planned Jan. 23 and Jan. 30
<p><em>[unable to retrieve full-text content]</em></p><p><em>[unable to retrieve full-text content]</em></p><div><img src=”” style=”width: 100%;”><div>NEWBURYPORT – A food drive to benefit the Newbury Food Pantry will be held on two Saturdays – Jan. 23 and 30 – from 9 a.m. to 1 p.m. outside</div></div> Sun, 17 Jan 2021 12:00:00 +0000 The Daily News of Newburyport

Deliveroo fundraising values it at $7bn as it gears up for stock market debut
<div><img src=”–/YXBwaWQ9aGlnaGxhbmRlcjt3PTIwMDA7aD0xMzMz/” class=”ff-og-image-inserted”></div><p><span class=”D(ib) Mt(2px) Mb(4px) C($c-fuji-grey-m)”>The Canadian Press</span></p><h4 class=”C($c-fuji-grey-m) Fw(600) Fz(16px) M(0) Mb(5px) Lh(1.25em) Trs(colorTransition) item-hover-trigger:h_C($titleHoverColor)”><a class=”Td(n) C($inherit) LineClamp(2,45px) D(f) js-content-viewer rapidnofollow” data-uuid=”cc17cd7e-387e-3bca-93cc-b6e5cec7e038″ href=”” data-ylk=”elm:hdln;itc:0;pos:1;sec:strm;subsec:moreforyou;cpos:18;ct:story;g:cc17cd7e-387e-3bca-93cc-b6e5cec7e038″ data-hosted-type=”HOSTED” data-wf-caas-prefetch=”1″ data-wf-caas-uuid=”cc17cd7e-387e-3bca-93cc-b6e5cec7e038″>Kremlin critic Navalny, facing arrest, lands in Moscow</a></h4><p class=”M(0) C($summaryColor) Fz(14px) Lh(1.43em) LineClamp(3,60px)”>MOSCOW — The plane carrying Russian opposition leader Alexei Navalny landed Sunday in Moscow, where he faces the threat of arrest. But the flight landed at a different airport than had been scheduled, a possible attempt to outwit journalists and supporters who wanted to witness the return. Navalny, who is President Vladimir Putin’s most prominent and determined foe, was returning from Germany, where he spent five months recovering from poisoning by a nerve agent, which he blames on the Kremlin. Russia’s prison service last week issued a warrant for his arrest, saying he had violated the terms of suspended sentence he received on a 2014 conviction for embezzlement. The prison service has asked a Moscow court to turn Navalny’s 3 1/2-year suspended sentence into a real one. After boarding the Moscow flight in Berlin on Sunday, Navalny said of the prospect of arrest: “It’s impossible; I’m an innocent man.” THIS IS A BREAKING NEWS UPDATE. AP’s earlier story follows below. BERLIN (AP) — Leading Kremlin critic Alexei Navalny departed from Germany on Sunday to return to Russia, where he faces the threat of arrest, after recovering from his poisoning in August with a nerve agent. Navalny, who announced on Wednesday that he planned to return, said he was “very happy” as he boarded a plane in Berlin bound for Moscow’s Vnukovo Airport. It remains to be seen what reception awaits him in Moscow. On Thursday, Russia’s prison service said that he faces immediate arrest once he returns. Navalny, who has blamed his poisoning on the Kremlin, charged that Russian President Vladimir Putin was now trying to deter him from coming home with new legal motions. The Kremlin has repeatedly denied a role in the opposition leader’s poisoning. At the end of December, the Federal Penitentiary Service, or FSIN, warned Navalny that he faced time in prison if he fails to immediately report to its office in line with the terms of a suspended sentence and probation he received for a 2014 conviction on charges of embezzlement and money laundering that he rejected as politically motivated. The European Court for Human Rights had ruled that his conviction was unlawful. The FSIN said Thursday it issued an arrest warrant for Navalny after he failed to report to its office. The prison service, which has asked a Moscow court to turn Navalny’s 3 1/2-year suspended sentence into a real one, said it’s “obliged to take all the necessary action to detain Navalny pending the court’s ruling.” Vnukovo Airport last week said it is banning journalists from its terminal, citing epidemiological concerns. Many of his supporters were expected to try to gather in the terminal to welcome Navalny, if he is able to get through passport control without being arrested. Security measures at the airport were heightened Sunday, with several prisoner-transport trucks parked outside. The independent newspaper Novaya Gazeta and opposition social media reported Sunday that several Navalny supporters in St. Petersburg had been removed from Moscow-bound trains or been prevented from boarding flights late Saturday and early Sunday, including the co-ordinator of his staff for the region of Russia’s second-largest city. Navalny fell into a coma while aboard a domestic flight from Siberia to Moscow on Aug. 20. He was transferred from a hospital in Siberia to a Berlin hospital two days later. Labs in Germany, France and Sweden, and tests by the Organization for the Prohibition of Chemical Weapons, established that he was exposed to a Soviet-era Novichok nerve agent. Russian authorities insisted that the doctors who treated Navalny in Siberia before he was airlifted to Germany found no traces of poison and have challenged German officials to provide proof of his poisoning. They refused to open a full-fledged criminal inquiry, citing a lack of evidence that Navalny was poisoned. Last month, Navalny released the recording of a phone call he said he made to a man he described as an alleged member of a group of officers of the Federal Security Service, or FSB, who purportedly poisoned him in August and then tried to cover it up. The FSB dismissed the recording as fake. ___ Geir Moulson in Berlin, and Jim Heintz in Moscow, contributed to this report. Mstyslav Chernov, The Associated Press</p><p><strong><a href=””></a></strong> <a href=””>(Why?)</a></p> Sun, 17 Jan 2021 11:12:12 +0000 Yahoo Movies Canada

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