How planarians can regenerate during periods of starvation
Planarians are able to survive long periods of starvation unscathed by maintaining their stem cell pool and regenerative capacity. The molecular processes behind this are not yet known. Jena researchers from the Leibniz Institute on Aging—Fritz Lip.....»»
Scientist identifies signaling underlying regeneration
The mystery of why salamanders can regenerate a lost limb, but adult mammals cannot has fascinated observers for thousands of years. Now, a team of scientists has come a step closer to unraveling that mystery with the discovery of differences in mole.....»»
Scientist identifies signaling underlying organ and limb regeneration
Many salamanders can readily regenerate a lost limb, but adult mammals, including humans, cannot. Why this is the case is a scientific mystery that has fascinated observers of the natural world for thousands of years......»»
Juvenile white-tailed sea eagles stay longer in their parental territory than nest protection periods
The white-tailed sea eagle is known for reacting sensitively to human disturbances. Forestry and agricultural activities are therefore restricted in the immediate vicinity of the nests. However, these seasonal protection periods are too short in the.....»»
Turning the tables—how table corals are regenerating reefs
Table corals have been dubbed as "extraordinary ecosystem engineers"—with new research showing these unique corals can regenerate coral reef habitats on the Great Barrier Reef faster than any other coral type......»»
Exoplanet surveys are leaning toward the possibility that our solar system is normal
One of the unspoken caveats of most exoplanet discovery missions is that they only operate for a few years. Such a short observing window means there are planets with longer orbital periods, usually further out from the star, that those surveys would.....»»
Widespread coral-algae symbioses endured historical climate changes
One of the most important and widespread reef-building corals, known as cauliflower coral, exhibits strong partnerships with certain species of symbiotic algae, and these relationships have persisted through periods of intense climate fluctuations ov.....»»
Moon mission delays could increase risks from solar storms
Planned missions to return humans to the Moon need to hurry up to avoid hitting one of the busiest periods for extreme space weather, according to scientists conducting the most in-depth ever look at solar storm timing......»»
Discovery increases likelihood of growing food despite drought
University of California scientists have discovered genetic data that will help food crops like tomatoes and rice survive longer, more intense periods of drought on our warming planet......»»
A 50,000-year history of current flow yields new climate clues
From 50,000 to 15,000 years ago, during the last ice age, Earth's climate wobbled between cooler and warmer periods punctuated by occasional, dramatic ice-melting events......»»
An animal able to regenerate all of its organs even when it is dissected into three parts
An extraordinary discovery in the Gulf of Eilat: Researchers from Tel Aviv University have discovered a species of ascidian, a marine animal commonly found in the Gulf of Eilat, capable of regenerating all of its organs—even if it is dissected into.....»»
Causes of extreme weather and climate events in China during 2020/21
During the summer of 2020, especially June and July, periods of extreme heavy rainfall occurred in China's Yangtze River Valley (YRV). These rain events caused the severest floods for the region since the summer of 1998. Despite this, the 2020 wester.....»»
"Impossible to adapt": Surprisingly fast ice-melts in past raise fears about sea level rise
Studies of ancient beaches and fossilised coral reefs suggest sea levels have the potential to rise far more quickly than models currently predict, according to geologists who have been studying past periods of warming......»»
Polymer-based coatings on metallic implants improve bone-implant integration
Traffic accidents, tumor resections, and congenital diseases can cause significant trauma, which can lead to large bone deformations and/or bone loss. Although bone has some capacity to regenerate, large bone defects cannot be healed without major me.....»»
Social tensions preceded disruptions in ancient Pueblo societies
Climate problems alone were not enough to end periods of ancient Pueblo development in the southwestern United States......»»
Discovery of an elusive cell type in fish sensory organs
One of the evolutionary disadvantages for mammals, relative to other vertebrates like fish and chickens, is the inability to regenerate sensory hair cells. The inner hair cells in our ears are responsible for transforming sound vibrations and gravita.....»»
While species come and go, their ecosystems persist over millions of years
Mammal communities underwent long periods of so-called functional stability despite the waxing and waning of their constituent species over tens of millions of years, even persisting through several environmental crises. This is the main conclusion o.....»»
Cascading effects of noise on plants persist over long periods and after noise is removed
Though noise may change moment by moment for humans, it has a more lasting effect on trees and plants......»»
Black holes like to eat, but have a variety of table manners
All supermassive black holes in the centers of galaxies appear to have periods when they swallow matter from their close surroundings. But that is about as far as the similarities go. That's the conclusion reached by British and Dutch astronomers fro.....»»
Scientists Dive Into Axolotl Genome, Looking For Secrets To Regeneration
An anonymous reader quotes a report from Gizmodo: Its adorableness aside, the Mexican axolotl is a salamander of particular interest to scientists. On the molecular level, the animal seems to have a cheat code for life: It can regenerate its limbs an.....»»
Droughts longer, rainfall more erratic over the last 50 years in most of the West
Dry periods between rainstorms have become longer and annual rainfall has become more erratic across most of the western United States during the past 50 years, according to a new study published by the U.S. Department of Agriculture's Agricultural R.....»»