A study performed with microorganisms inhabiting floodplains, which comprises 20 percent of the whole Amazon, showed that the microbial food chain produces 10 times more CO2 than the classical food chain, mostly by decomposing organic matter
Artificial light is rightly considered a major social, cultural and economic achievement. Yet, artificial light at night is also said to pose a threat to biodiversity, especially affecting nocturnal species in metropolitan areas.
Many whales take long journeys each year, spending summers feeding in cold waters and moving to warm tropical waters to breed. One theory suggests that these long-distance migrations originated around 5 million years ago, when ocean productivity became increasingly patchy.
Barnacles that hitchhiked aboard humpback whales tell of prehistoric yearly migrations
People in many parts of the world feed birds in their backyards, often due to a desire to help wildlife or to connect with nature. In the United States alone, over 57 million households in the feed backyard birds, spending more than $4 billion annually on bird food.
Evolutionary biologists at McMaster University who study the social lives and behavior of colony spiders--some of which are docile, others aggressive-- have found that the success of their cooperative societies depends on their neighbors.
The let-7 gene is considered a fundamental regulator of developmental timing in animals - in organisms as distinct as worms and mammals. It produces a small RNA, known as the let-7 microRNA (miRNA), which can silence other genes. In the model organism C. elegans, let-7 controls the transition from a juvenile to an adult animal.
Pick right-sized rock or be eaten by cannibal neighbors
The newly discovered Medusavirus give new insights on how organisms and viruses co-evolved
Study could shed light on harmful bacteria that share antibiotic resistance genes
Zoology research team from the universities of Jena and Massachusetts discovers potentially primeval chewing behavior in salamandrids
Striking traits seen only in males of some species - such as colorful peacock feathers or butterfly wings - are partly explained by gene behavior, research suggests.
Many living systems share a fundamental capacity for cooperation. Plants and animals are made up of billions of cells that communicate with one another, carry out specific tasks and share their resources. Many single-celled microorganisms cooperate in similarly versatile ways: they form communities and exchange useful genes and resources among one other.
Infections caused by drug-resistant bacteria are a global public health threat causing serious illness and even death. Strains of the bacterium Enterococcus faecium (E. faecium) are generally harmless in healthy people, but can be pathogenic in immunocompromised or severely ill patients.