For biologists, a long-standing question has been why some animals live longer than others. This week a team have attempted to answer this, by measuring the rates that different animal species accumulate mutations. They show that longer-lived animals acquire mutations at a slower rate, which helps to explain why cancer risk does not scale with lifespan.
07:56 Research Highlights
A clinical trial suggests a change to the treatment of a pregnancy ailment, and astronomers identify the largest known structure produced by a single galaxy.
10:43 The war in Ukraine’s effects on global energy
Many European countries are dependent on Russian fossil fuels for energy production. Following Russia’s unprovoked invasion of Ukraine, these countries are looking to wean themselves off these fuels, which could have short- and long-term impacts on emissions and food production.
19:58 A new measurement of a particle’s mass hints at new physics
Last week, a new estimate of the W boson’s mass caused much excitement among physicists. The result suggests that this particle is heavier than theory predicts, a finding that could be the first major breach in the standard model of particle physics. However, measuring W bosons is notoriously tricky, and further work will be needed to confirm the finding.
As the Russian invasion of Ukraine continues to impact crucial food exports, wheat prices are soaring. Many African countries rely on Ukrainian and Russian grain exports and could face a severe food crisis. But in Cameroon, entrepreneurs are coming up with alternatives to wheat, which is used to make flour. Production of bread and cakes made from local cassava and sweet potato flour is now booming. These tubers are abundant in the country but are normally used unprocessed in traditional dishes. Our correspondents report.
Pula, a seafront city on the tip of Croatia’s Istrian Peninsula, is known for its protected harbor, beach-lined coast and Roman ruins. Settled in the prehistoric era and valued for its strategic location, Pula has been occupied, destroyed and rebuilt numerous times. The Romans, Ostrogoths and Venetians, as well as the Allied Forces in World War II, have each administered the city.