ScienceDaily: All - November 30, 2024
Today's top research news
More than a million years ago, on a hot savannah teeming with wildlife near the shore of what would someday become Lake Turkana in Kenya, two completely different species of hominins may have passed each other as they scavenged for food. Scientists know this because they have examined 1.5-million-year-old fossils they unearthed and have concluded they represent the first example of two sets of hominin footprints made about the same time on an ancient lake shore. The discovery will provide more insight into human evolution and how species cooperated and competed with one another, the scientists said.
Image: LukaSkywalker/Shutterstock.com
Satellite evidence bolsters case that climate change caused mass elephant die-off
A new study has provided further evidence that the deaths of 350 African elephants in Botswana during 2020 were the result of drinking from water holes where toxic algae populations had exploded due to climate change.
Bacteria ditch tags to dodge antibiotics
Bacteria modify their ribosomes when exposed to widely used antibiotics, according to new research. The modified ribosomes have changes specifically in the regions where antibiotics latch on to and halt protein production. The study found this made the bacteria more resistant to the drugs. The subtle changes might be enough to alter the binding site of drug targets and constitute a possible new mechanism of antibiotic resistance.
Strategies for safe and equitable access to water: A catalyst for global peace and security
Water can be a catalyst for peace and security with a critical role in preventing conflicts and promoting cooperation among communities and nations -- but only if managed equitably and sustainably.
Sea anemone study shows how animals stay 'in shape'
Some animals, such as the starlet sea anemone, can regenerate large parts of their body, even after major injuries. Researchers have shown this regeneration response involves cells and molecules in body parts far from the injury site and is directed towards restoring the animal's original shape. The study sheds new light on the fundamental importance of maintaining body shape in animals and enhances our understanding of the molecular pathways involved in regeneration.
Coral adaptation unlikely to keep pace with global warming
Coral adaptation to ocean warming and marine heatwaves will likely be overwhelmed without rapid reductions of global greenhouse gas emissions, according to an international team of scientists.
Structural link for initiation of protein synthesis in bacteria
An international team of scientists have used advanced microscopy to image how ribosomes recruit to mRNA.
Hormone therapy affects the metabolic health of transgender individuals, study finds
New research shows that long-term sex hormone treatment in transgender individuals can lead to significant changes in body composition and risk factors for cardiovascular disease, particularly in transgender men.
Chemical replacement of TNT explosive more harmful to plants, study shows
The increased use of a chemical compound to replace TNT in explosive devices has a damaging and long lasting effect on plants, new research has shown.
Preschool education: A key to supporting allophone children
A Canadian study reveals that allophone children often face learning and communication difficulties in kindergarten, which can negatively impact their educational journey.
Clinical trial reveals twice-yearly injection to be 96% effective in HIV prevention
Recent results from a recent clinical trial indicate that a twice-yearly injection of Lenacapavir offers an overall 96% reduced risk of acquiring HIV. This makes Lenacapavir significantly more effective than the standard daily oral PrEP (pre-exposure prophylaxis).
First new treatment for asthma attacks in 50 years
A recent trial finds an injection given during some asthma and COPD attacks is more effective than the current treatment of steroid tablets, reducing the need for further treatment by 30%.
Only males are pictured, following a long tradition of sexism in illustrations of evolution. Suggestion: Break new ground. Consider including genital innies, as well as changing the illustration title from "Evolution of Modern "Man" to "Evolution of Modern Humans".
Ditto! Can we change wording already to modern human!