Biology Archives - Page 21 of 33 - Scitke

Ancient Extinct Skink was Orders of Magnitude Bigger Than Any Skink Alive Today

Researchers have made a significant discovery regarding an ancient and extinct species of skink. The findings, reveal that this prehistoric skink was considerably larger in size compared to any skink species currently in existence. A team of scientists from Flinders University, in collaboration with the South and Western Australian Museums, has confirmed the identification of […]

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Ancient DNA: African-Origin Cattle

Biology, Cell Biology, Science / Ana Kiesse Zeleme

Cattle, now iconic in American lore, were absent from the continent until the Spanish introduced them from Europe via the Canary Islands. A recent study analyzed ancient DNA from Caribbean and Mexican Spanish settlements, revealing that cattle from Africa were imported early in colonization, more than a century before documentation. Although historical records suggested a

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Decoding Inner-Ear Bone Loss

Biology, Molecular Biology, Science / Ana Kiesse Zeleme

Scientists demonstrate that the potential origin of localized bone degradation in cholesteatomas involves bone-derived fibroblasts that produce a protein identified as activin A. Prolonged inflammation in the middle ear can lead to various complications impacting both hearing and balance for individuals. Among these issues, the emergence of cholesteatomas, and abnormal cell accumulations within the ear,

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Number Theory’s Genetic Insight

Biology, Evolution, Science / Marcílio Santos

A diverse group of mathematicians, engineers, physicists, and medical scientists has unveiled an unforeseen connection between fundamental mathematics and genetics, shedding light on neutral mutation structure and evolutionary patterns in organisms. Number theory, the exploration of positive integer properties, represents a quintessential form of mathematics. Its apparent abstraction may seem incompatible with the natural realm.

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The New Antibacterial Sponge Proves to be Highly Effective Against Toxic Blue-Green Algae

Biology, Science / Jorge Paka

Toxic cyanobacteria, commonly referred to as blue-green algae, can pose dangers to both humans and wildlife when their numbers increase significantly in lakes or rivers. Fortunately, a recently created sponge shows promise in effectively managing and controlling these harmful algal blooms. Persulfate-Based Oxidants Previously, Jiangfang Yu and Lin Tang, scientists from China’s Hunan University, conducted

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Amino Acid Alterations in Sperm Linked to Infertility

Biology, Cell Biology, Science / Ngoma Manuel

Sperm play a vital role in creating new life, contributing half of the required genetic material for fertilization. Researchers at the University of Michigan are now delving into the molecular-level details of sperm formation, focusing on protamines—a unique group of proteins that package sperm DNA. Understanding the significance of protamines may shed light on male-factor

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Scientists Have Discovered Which Region of Rats’ Brains Becomes Active When they Giggle

Biology, Science / Jorge Paka

What occurs in the brain during tickling? Back in 1999, researchers discovered that rats emit vocalizations similar to humans when tickled. The question arises: do they laugh or react aggressively due to irritation? At the neurobiological level, studies have successfully identified brain regions responsible for fear, reward, sensory processing, and cognition, but the understanding of

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New Research Links Mitochondrial Gene Expression to Hypertensive Disorders of Pregnancy

Biology, Genetics, Science / Ngoma Manuel

High blood pressure (hypertension) during pregnancy poses severe risks to the pregnant and fetus. A recent study sheds light on potential contributing factors to these dangerous disorders, focusing on changes in mitochondrial gene expression. The research offers valuable insights into understanding and potentially addressing hypertensive disorders during pregnancy. Examining Hypertensive Disorders of Pregnancy Hypertensive disorders

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Kangaroo Tendons May Enhance Human Knee Rebuilding Significantly

Biology, Evolution / Jorge Paka

The possibility of using kangaroo tissue for knee reconstruction is nearing reality, as human trials are scheduled to begin in 2024. “I’ve consistently maintained that kangaroos represent nature’s most exceptional athletes,” states Dr. Nick Hartnell, an orthopedic surgeon and one of the study’s authors. “These creatures truly stand out with their remarkable abilities, capable of

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Scientists Find the Key to Virgin Birth and Enable it in Female Flies

Biology, Genetics / Jorge Paka

Scientists have made a groundbreaking discovery by identifying the genetic cause of virgin birth in an unexpected species, the fruit fly ”Drosophila melanogaster”. Once this ability is activated in a female fruit fly, it can be inherited by successive generations. In this process, females can reproduce either sexually with the presence of males or through

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