Uncategorized
- Animals
Some otters wear red algae
Some sea otters in California sport coats of red algae. A new study finds the species most likely is a non-native organism from half a world away.
- Brain
Brain damage seen in potent-marijuana smokers
Brain scans of people smoking potent forms of pot showed abnormalities in white matter. Studies have not yet looked to see if these changes are also linked with changes in memory, risk of depression or other types of harm.
- Animals
Algal poison can harm sea lion memory
Sea lions exposed to toxic algae can experience seizures and brain damage. New research shows that the toxin also causes impairments to memory.
- Animals
Some fish wear an invisibility cloak
Some fish can hide in open water. How? Tiny crystals in their scales and skin help them reflect and blend in with polarized light.
- Brain
Meditation may boost teen memory
Teens who trained in a practice called mindfulness meditation saw improvements in their ability to remember things.
- Animals
Picture This: Rare tiger becomes mom
Zolushka is the first Amur tiger to be reintroduced to the wild and have cubs. She are her two young were caught on a camera trap.
- Chemistry
Scientists Say: Joule
A joule is the amount of work done when a force of one newton moves an object one meter. It’s also the energy required to produce one watt for one second.
- Brain
Bubbles may underlie trauma’s brain injury
Many soldiers and accident victims sustain traumatic brain injury that can affect memory, thinking and body movements. New research now studies whether tiny bubbles caused by pressure waves may trigger that damage.
- Climate
Paris meeting yields climate agreement
It provides outlines and incentives for nations to curb fossil-fuel use. The goal is to limit global warming to no more than 2° Celsius (3.4 °Fahrenheit) above temperatures typical in the 1750s or earlier.
- Agriculture
New gene resists our last-ditch drug
Antibiotic resistance continues to grow. Now, scientists have found a tiny loop of DNA that resists a drug doctors use as a last line of defense.
- Animals
As big animals poop out
Whales move nutrients from deep ocean to surface waters. From there, nutrients move to land and fertilize continents. But the system is in trouble.
- Climate
Carbon dioxide has an unexpected effect in Antarctica
Antarctica’s frigid surface combined with excess carbon dioxide to create cooling above the remote continent, a new study finds.
