Ornithologists have described a new bird species from the subantarctic islands

Ornithologists have described a new species of bird that lives on the Diego Ramirez Islands south of South America. It is called the subantarctic rayadito. In the past, the local population was thought to be the spiny-tailed rayadito, which is widespread in Chile and Argentina. However, the analysis showed that individuals from the Diego Ramirez… Continue reading Ornithologists have described a new bird species from the subantarctic islands

Bushfire smoke raised temperatures in Australia by three degrees

British climatologists studied the distribution of smoke in the stratosphere after bushfires in Australia in 2019–2020. They found that black carbon particles in the smoke increased the average temperature in the lower stratosphere by 0.7 degrees worldwide, with temperatures rising by three degrees over Australia. Additionally, the reaction of smoke and ozone has caused the… Continue reading Bushfire smoke raised temperatures in Australia by three degrees

Hamsters from the wet slopes of the Andes turned out to be larger than their relatives from the arid plains

Zoologists from Argentina, the USA and Chile have discovered that plateau hamsters Abrothrix hirta from the wet western slopes of the Andes are larger than relatives that inhabit the arid plains east of this mountain range. This pattern is explained by the fact that the abundance of precipitation has a positive effect on the growth… Continue reading Hamsters from the wet slopes of the Andes turned out to be larger than their relatives from the arid plains

Physicists simulated militant Redditors with GameStop shares

European physicists used a large amount of data from the r/wallstreetbets subreddit, as well as the dynamics of securities prices, to understand the mechanisms of self-organization of a large number of people using the example of the scandal surrounding the unexpected rise of GameStop shares. The mathematical model they developed of a voter under the… Continue reading Physicists simulated militant Redditors with GameStop shares

A new sauropod from Colombia reveals the early spread of long-necked dinosaurs to South America

A new species of giant, long-necked dinosaur that lived about 175 million years ago during the Jurassic period was described in Colombia. Vertebra belonging to Perijasaurus lapaz, is the earliest and northernmost sauropod specimen discovered in South America. The find provides information about the initial diversification of sauropods at low latitudes. The study was published… Continue reading A new sauropod from Colombia reveals the early spread of long-necked dinosaurs to South America

Direct migration trajectories of dead heads indicated the presence of an internal compass

Entomologists have tracked the autumn migrations of death's-head hawk moths across the Alps. It turned out that these moths move in a straight path, adjusting the direction and altitude of their flight depending on where the wind is blowing. As noted in the magazine article ScienceThe findings indicate that death's heads have an internal compass.… Continue reading Direct migration trajectories of dead heads indicated the presence of an internal compass

Kākāpō numbers have risen to their highest level in almost 50 years. Now there are 252 of them

Kākāpō numbers have reached their highest levels in nearly fifty years. According to a press release from New Zealand's Ministry of Environment, the rare parrots have given birth to 55 chicks this year, bringing the total number of representatives of this species to 252 individuals. By comparison, in 1995 there were only 51 kakapo left… Continue reading Kākāpō numbers have risen to their highest level in almost 50 years. Now there are 252 of them

Lost Colombian saberwing hummingbird rediscovered after 12 years

Found in the mountains of northern Colombia, the Santamartian sabrewing is considered one of the rarest species of hummingbird. Over the past decades, he has been seen only twice – in 1946 and 2010. Some experts even suspected that this species had become extinct. However, according to a press release from the conservation organization Re:wild,… Continue reading Lost Colombian saberwing hummingbird rediscovered after 12 years

A magnolia from Haiti that was thought to be extinct has been rediscovered after 97 years.

Botanists have discovered a population of endemic magnolias in northern Haiti Magnolia emarginata. The first and last time scientists saw them was in 1925, after which the forest where these trees grew was cut down – like most Haitian forests. However, it turned out that a small number of trees managed to survive in the… Continue reading A magnolia from Haiti that was thought to be extinct has been rediscovered after 97 years.

The “wings” of the heron orchid turned out to be a landing pad for hawk moths

Because of the fringe on the lateral lobes of the lip, the flower of the leopard rayus resembles a flying white heron. Japanese botanists have found out why this orchid needs such an unusual structural feature. It turned out that the fringe serves as a landing site for hawk moths, the main pollinators of the… Continue reading The “wings” of the heron orchid turned out to be a landing pad for hawk moths