Science Alert
Catch up on the latest science news, from space and technology to life and environmental research- all the discoveries shaping our world today.
Updated: 2 hours 8 min ago
Tiny Scottish island of Lismore uncovers evidence of a medieval Christian monastery
Residents of Lismore, a tiny Scottish island with around 190 inhabitants, raised funds for archaeological excavations that uncovered a medieval cemetery, ancient buildings and more than 1,000 metalworking artefacts. The discoveries suggest the island was an important religious and craft centre during the sixth and seventh centuries, shedding new light on early Christianity in northern Britain.
Why mosquitoes seem to bite you more than everyone else: What blood type, body odour and science reveal
Mosquito attraction differs from person to person, influenced by various elements such as the unique scent of one’s skin and blood type. Studies indicate that specific skin chemicals can make individuals more appealing to mosquitoes. Moreover, the carbon dioxide we exhale is a critical attractant, along with factors like body heat and moisture. Gaining insight into these elements is essential for effective mosquito bite prevention.
In 2006, Grand Canyon began a major trout-reduction effort in Bright Angel Creek; native fish populations increased by more than 400%
Historically, Bright Angel Creek was a sanctuary for various native fish species, including the endangered humpback chub. However, the rise of non-native brown trout has threatened this ecosystem. In an effort to restore balance, the Bright Angel Creek Trout Reduction Project was initiated, successfully eliminating invasive trout and leading to a remarkable 400% increase in native fish populations.
Antarctic sea ice reached its third-lowest winter maximum in satellite records
On September 14, Antarctic sea ice reached its peak extent, covering around 17.59 million square kilometres. However, this year marks the third lowest maximum on record, indicating a concerning trend as it falls below the long-term average. The past four winters have each presented historically low sea ice levels, raising urgent questions about future climate impacts driven by this alarming decline in coverage.
17-year-old Iris Shen uses clams to test blood-cancer drugs, wins $150,000 prize
Iris Shen, a bright high school student hailing from The Woodlands, Texas, gained acclaim for her groundbreaking research on cancer. She explored a novel drug’s effects on clams to study its impact on blood cancer. The results of her experiment suggest new avenues for drug discovery, underlining the need for innovative approaches in medical research. This recognition underscores the crucial role of young scientists in furthering our scientific knowledge.
Scientists discover a bamboo coral forest nearly 1,400 metres below the surface
Researchers located a previously unknown deep-water bamboo coral forest during an expedition near the Xisha Islands. The coral forest, recorded at depths of 1,200 to 1,380 metres, features various marine species and habitats. Observations showed increased coral density as depth decreased, highlighting its ecological significance. Active currents and nutrient-rich underwater conditions contribute to the forest's growth and biodiversity.
14-year-old Indonesian plants 38,000 mangroves, helps local women turn them into sustainable products
In Indonesia, young activist Harley Fatahillah Yodhaloka Sunoto is leading a passionate campaign for mangrove restoration and climate education. Through his Mangrove Warrior initiative, he has successfully planted thousands of seedlings in critical coastal regions, strengthening ecosystems and supporting local communities. By collaborating with mothers and organizations, Harley is educating on sustainable practices, with an ambitious goal of planting one million mangroves and launching educational programs nationwide.
Costa Rica releases 13 white-lipped peccaries into a national park after an 18-year absence
Thirteen white-lipped peccaries were reintroduced to Piedras Blancas National Park after 18 years of absence. This project aims to restore ecological balance by benefiting local ecosystems and communities. Surveys confirmed the animal's disappearance, emphasizing the need for its reintroduction through local knowledge. The initiative also seeks to enhance ecotourism and environmental education in the region. Osa Conservation collaborates with various stakeholders to support conservation and community development.
The world’s largest known juniper has a hollow trunk that hides its exact age
California's Stanislaus National Forest hosts the Bennett Juniper, recognized as the largest Sierra juniper tree. Standing at 24 meters tall and with a trunk diameter of 389 centimeters, it is impressive. Despite attempts, researchers struggle to determine its exact age due to its hollow trunk. This tree has been protected by 'Save the Redwoods League' for future generations.
In 1997, Australia eradicated rabbits to save Gould’s petrels; by 2000, 800 pairs bred on the island
After the successful elimination of rabbits from Cabbage Tree Island, conservationists observed a remarkable increase in the Gould’s petrel population. This pivotal action mitigated serious threats to their habitat and reproductive success, leading to over 800 breeding pairs by 2000, with annual offspring exceeding 400. To further bolster the species, a second breeding colony was initiated on Boondelbah Island, emphasizing the need for ongoing protective measures.
A study of 77 Bronze Age children in Serbia found sex-linked burial customs dating back 4,000 years
The study of burial practices in Bronze Age Serbia indicates that children’s funerary treatment varied by biological sex, with research focused on two Maros culture cemeteries. Boys and girls were interred in contrasting ways, highlighting established gender roles. Interestingly, some burials challenged these customs, inviting reflection on societal standards. This work sheds light on the nuances of how ancient communities perceived and enacted gender distinctions in funerary rituals.
