A key discovery has been made regarding Fraser River sockeye’s vulnerability to sea lice. Their recently published research indicates that juvenile Fraser River sockeye salmon that are highly infected with sea lice are 20 percent less successful at consuming food than their lightly infected counterparts.
The decline of the world’s large herbivores, especially in Africa and parts of Asia, is raising the specter of an ‘empty landscape’ in some of the most diverse ecosystems on the planet. Many populations of animals such as rhinoceroses, zebras, camels, elephants and tapirs are diminishing or threatened with extinction in grasslands, savannahs, deserts and forests.
Runoff from pavement with coal-tar-based sealant is toxic to aquatic life, damages DNA, and impairs DNA repair, according to new research. Rainwater runoff collected as long as three months after coal-tar-sealcoat application caused 100% mortality to minnows and water fleas, which are part of the base of the food chain.
Dispersal and adaptation are two evolutionary strategies available to species given an environment. Generalists, like dandelions, send their offspring far and wide. Specialists, like alpine flowers, adapt to the conditions of a particular place. New research models the interplay between these two strategies and shows how even minor changes in an environment can create feedback and trigger dramatic shifts in evolutionary strategy.
In proof-of-concept experiments, researchers demonstrate the ability to tune medically relevant cell behaviors by manipulating a key hub in cell communication networks. The manipulation of this communication node makes it possible to reprogram large parts of a cell’s signaling network instead of targeting only a single receptor or cell signaling pathway.
The CRISPR/Cas system, which is based on chemically synthesized small RNAs and commercially available Cas9 enzyme, has enabled long gene-cassette knock-in in mice with highest efficiency ever reported, scientists report.
New research has brought us closer to being able to understand the health benefits of coffee.
Continually producing sperm over a long time is important to procreate the next generation. Researchers have revealed that there are differences in reactivity to retinoic acid in spermatogonial stem cells, and these differences are a key factor to the persistence of sperm production with inexhaustible stem cells.
In case you’re unaware, Kevin Gates doesn’t get tired. To solidify his tagline proclamation, the Louisiana rapper and 2014 XXL Freshman drops the remix to his 2014 single, “I Don’t Get Tired.” Usually known for his outlandishly brazen social media posts, the Baton Rouge native dropped off the remix for fans. Instead of enlisting another R&B singer like August Aslina for the hook, Gates does away with a chorus all together in favor of dropping straight bars for five minutes straight.
“Born in the ’80s I’m a crack baby, epidemic where it got me living/Waking up like I’m in the penitentiary, on the phone, bae you know I miss ya,” raps Gates. Amid lighter sparks and the familiar backbeat, there are plenty of name drops in Gate’s remix, from Jim Jones and Beanie Sigel to Shy Glizzy and Kendrick Lamar. (“Scared of Kendrick Lamar, boy mind frame with the art/Boy musta read on the wall, said he was king of New York/Had the rap game in awe/Heard the comebacks like ‘naw’”)
Take in the relentless rhymes of the remix above and you can listen to Gate’s original cut off his Luca Brasi 2: A Gangsta Grillz Special Edition mixtape, which is out now.
High-resolution imaging of plant cells is important in many plant studies, and the most commonly used method is scanning electron microscopy (SEM). But SEM can have limitations, including damage to material during sample preparation and high equipment costs. Researchers have developed an optical sectioning-3-D reconstruction method using a compound fluorescence light microscope. The new method is simpler and more cost-effective than SEM.