Major Breakthrough in Evolutionary Biology Reveals Path from Simple to Complex Cells

ESSpain|

A new study has unveiled insights into how simple cells evolved into complex life forms over two billion years ago. Conducted by researchers from Spain and published in the journal PNAS, the research attributes this evolutionary leap to the limitations in protein size, which forced an essential shift in genetic regulation, as explained by co-author Jordi Bascompte of the University of Zurich.

Historically, the transition from prokaryotic cells (simple bacteria) to eukaryotic cells (more complex organisms) has puzzled scientists. Bascompte cites British biochemist Nick Lane's assertion regarding the lack of known intermediaries between these cellular forms. The research posits that as proteins could no longer elongate effectively, cells began utilizing non-coding parts of DNA, such as introns, leading to new genetic regulatory strategies.

Biotechnologist César de la Fuente from the University of Pennsylvania praised the study's interdisciplinary approach, noting its potential to explain the complexity of multicellular organisms. The collaborative effort from various scientific disciplines reflects a quest for answers that has spanned three decades, illustrating the intricate relationship between biology and computational algorithms.

Weekly Newsletter

Loading...

More from Spain

Glaciers Losing Ice at Alarming Rate, Warns World Meteorological Organization

The World Meteorological Organization (WMO) has issued a stark warning that the world's glaciers are losing ice at an unprecedented rate, equating to three Olympic-sized swimming pools every second. This announcement coincides with the first World Glacier Day on March 21, amidst the International Year of Glaciers’ Conservation. According to the WMO Secretary-General Celeste Saulo, the rapid retreat of glaciers presents a serious threat to global economies and ecosystems, with implications reaching far beyond mountain regions. Recent research published in *Nature*, led by the World Glacier Monitoring Service, reveals that glaciers have lost an average of 273 billion tons of ice annually since 2000, with a 36% increase in ice loss in the last decade. This study indicates that glaciers in regions like the Alps and Pyrenees have suffered the most, with potential long-term impacts on freshwater supplies, particularly in Asia. The report emphasizes the urgent need for climate action, as failing to mitigate further warming could result in the loss of many glaciers globally by the end of the century, potentially raising sea levels by 30–35 centimeters.
ESSpain

Luis Rubiales Found Guilty of Sexual Assault in Hermoso Case

Former Spanish football chief Luis Rubiales has been found guilty of sexually assaulting player Jenni Hermoso by kissing her without consent after the Women's World Cup final in August 2023. Spain's High Court has ordered Rubiales to pay a fine exceeding €10,000 (approximately $11,000) but acquitted him of coercion, according to court documents. During the trial, Hermoso testified that she "never" consented to the kiss, calling the incident a "taint" on what was otherwise "one of the happiest days" of her life. Rubiales, 47, claimed the kiss was consensual and occurred in a "moment of jubilation." However, the controversy overshadowed Spain's historic victory, prompting widespread discussions around sexism in sports and the push for equal treatment of female athletes. The case and its ramifications have sparked significant public debate and advocacy for greater accountability and respect for women in sports. The ruling marks a pivotal moment in the evolving conversation about consent and harassment in the sporting world.
ESSpain

Methane Leaks in Antarctica Raise Climate Concerns

A team of Spanish scientists has discovered significant methane emissions from the Antarctic seabed, raising alarms about potential consequences for global warming. Using the research vessel Sarmiento de Gamboa, the expedition identified methane columns extending up to 700 meters long and 70 meters wide on February 8, 2025. Geologist Ricardo León noted that these emissions could act as an "environmental bomb," as methane is approximately 30 times more potent at trapping heat than carbon dioxide, according to statements reported by EL PAÍS. The expedition, which began on January 12, aimed to investigate hypothesized leaks caused by the melting of the Antarctic ice sheet and post-glacial rebound, a phenomenon that reduces pressure on the land. The recent findings align with other studies showing rising temperatures in the region—more than 3 degrees Celsius in the last 50 years. In addition to methane emissions, researchers warned about the potential for significant landslides that could result in tsunamis, similar to the historic Storegga landslide in the Arctic. "When methane hydrates turn into gas, their volume can increase 160-fold, potentially triggering catastrophic geological events," León emphasized.
ESSpain
All Spain News ->