Introduction Why do humans age? What is cellular senescence? Why can’t we live forever? The answer lies deep in our internal code, the blueprint of life - DNA. DNA is a molecule that encodes within itself instructions for making other, more diverse molecules called proteins. Proteins run…
In Russia, a weight-loss pill called Molecule (and its variant “Molecule Plus”) has recently captured attention — and concern. Marketed online and via social media as a “natural” slimming solution, it has instead been found to contain the banned appetite-suppressant drug Sibutramine, raising serious health and legal…
Everyone knows about the eight planets in the solar system. But what if there were more? By looking at peculiarities in celestial objects and other planets, scientists have found that there may be a ninth planet, far beyond Neptune, Planet X. Table of Contents: The First "Planet…
Think about a starfish regrowing its fins, or a lizard regrowing its tail. These processes that occur in nature are at the heart of a quickly developing field of science: Regenerative Biology. Throughout history, innovative humans have looked to nature for inspiration. Learn how scientists are exploring…
Playing is a common sight across numerous species. It’s evident in the pair of bear cubs tumbling down a riverbank, or a kitten pouncing on a loose thread, or a pod of dolphins riding the waves of a ship. But beneath the surface of this phenomenon…
The long necks of giraffes allow them to reach the high leaves on a tree. The thin beak of a humming bird allows it to reach deep into long, tubular flowers to access nectar. Arctic foxes have white fur so they can blend into their snowy environment.…
Steps of the Sliding Filament Theory An action potential crosses the neuromuscular junction. This causes the muscle cell to depolarise. After that occurs, it spreads down the transverse tubules to the sarcoplasmic reticulum. Then, the calcium channels open. This is due to stimulation of the sarcoplasmic reticulum.…
Spinal deformities, such as scoliosis, can have serious consequences for animals, including pain, limited mobility, and breathing difficulties. Traditionally, veterinarians rely on X-rays to diagnose these conditions. While accurate, X-ray imaging often requires animals to be sedated or placed under general anesthesia to remain still, which can…