The cordon-bleus are unique animals that both sing and tap-dance to attract mates.
A study of 986 Bolivian women found that on average, a lifetime infection with a type of roundworm named Ascarius lumbricoides led to an extra two children in the family. Their paper, published in the journal Science, suggests that the worm is altering the host’s immune system, making it easier to become pregnant — in effect, the parasite increases female fertility. The researchers hope this discovery will lead to “novel fertility enhancing drugs.”
In July, Professor Stephen Hawking took the time to answer questions posed by Reddit users in an AMA (Ask Me Antyhing), addressing one of the less discussed aspect of increasing technology and robotization: the distribution of wealth.
The small Central American nation got rid of its armed forced 65 years ago, and the Ticos are a happier people for it. Now, Costa Rica – home to four and a half million people – is setting the world a new example in human values: for 255 days it has managed its resident’s energy needs with little fossil fuel use.
A University of Nevada team, led by anthropologist Peter Gray, tested several hypotheses about pets and contemporary courtship or dating rituals. Their study will appear in a forthcoming issue of the journal Anthrozoös.
This may be the first known case of simplification from a macro to a microorganism, a cheap trick which evolution likely used more than once though.
A paper published recently in Nature Communications details how a team lead by Dr. Ben Wilson and Professor Chris Petkov used a brain imaging technique to identify the neuronal evolutionary origins of language. Their findings help us understand how we learn to speak, and could allow new treatments for those who lose this ability from aphasia after a stroke or dementia.
Showcased are some of the most amazing designs that mimic nature closely: man-made, but defined by their allegiance to nature.
The bat is the only flying mammal and among the heaviest in the world. To top it over, it can land upside down a perplexing acrobatic feat which has left scientists scratching their heads for many years. After carefully and systematically studying bat upside landings in slow motion, a group of researchers thinks it has cracked the puzzle: bats employ a nifty trick where one wing stays flapping while the other is moved close to the body. This asymmetry corrects the moment of inertia and center of mass so the bats always land safely upside down.
A recent study from Iowa State University shows how a gene, found in a single plant species so far, can increase protein content when grafted into the DNA of staple crops. Their findings could help improve a huge variety of crops and improve nutrition in developing parts of the world, where available sources of protein are sometimes limited.