“In the spring a young man’s fancy lightly turns to thoughts of love” (Alfred, Lord Tennyson), but he could have said the same for insects too. Male insects will be following the scent of females, looking for a partner, but not every female is what she seems to be. It might look like the orchid is getting some unwanted attention in the video below, but it’s actually the bee that’s the victim. The orchid has released complex scents to fool the bee into thinking it’s meeting a female.
How does nature benefit our health? Many of us intuitively know that we simply feel better after ‘stepping out for some fresh air.’ Now over 30 years of research has begun to reveal exactly what health benefits we get from nature. Here are five reasons why we need to make space and time for nature in our lives.
Our brain lives in a symbiotic relationship with the bugs in our gut. Whatever we eat, they eat. In return, they help our brain function optimally in a variety of ways. During the past few years, it has become increasingly apparent that in the absence of bacteria humans would never have evolved to our current level of cognitive performance. Our brains are profoundly dependent upon a wide range of chemicals produced by these gut bugs.
One of the most fun and exciting sources of information available for free on the Internet are the videos found on the Technology, Entertainment and Design (TED) website. TED is a hub of stories about innovation, achievement and change, each artfully packaged into a short, highly accessible talk by an outstanding speaker. As of April 2015, the TED website boasts 1900+ videos from some of the most imminent individuals in the world. Selected speakers range from Bill Clinton and Al Gore to Bono and other global celebrities to a range of academics experts.
Green fluorescent proteins, or GFPs for short, are visibly advancing research in biology and medicine. By using GFPs to illuminate proteins otherwise undetectable under the microscope, scientists have learned a great deal about processes that take place within our cells.
Hop (Humulus lupulus L.) is an essential ingredient for brewing beer, and contributes a characteristic bitterness, aroma, and fullness. However, during the Middle-Ages, various other herbs including Rhodomyrtus tomentosa and Salix subfragilis, had also been used for brewing beer in Europe.
It was a simple request: “Try and put the fun back into microbiology”. I was about to write a new practical course for first year students, and apparently there had been complaints that microbiology is just another form of cookbook chemistry. Discussions showed that they liked the idea of doing their own experiments without a pre-determined outcome. Of course, with living microorganisms, safety must be a major concern, and some control was needed to prevent hazardous surprises, but “fun” and safety are not mutually exclusive.
Nipple of a cat. Nose of a pig. Hair of a poodle. Eyes of a baboon. Brain of a chimpanzee. If this sounds like a list of ingredients for a witches’ cauldron, think again, for it’s merely a reminder of how many general characteristics we share with other mammals. This similarity in basic body parts has a genetic basis. So humans and chimps share 99 percent DNA similarity in our protein–coding genes and even the tiny mouse is 85 percent similar to us in this respect.
On 18th May plant lovers around the world take part in Fascination of Plants Day to raise awareness of the importance of plant science to our lives. Well, what is so fascinating about plants? We asked some of our authors and editors to share why they think plants are fascinating and why they are worth studying.
I used to climb trees when I was young (and I still, on occasion, do). As a boy in Iraq I had a favoured loquat tree, with branches that bore leathery, serrated leaves, shiny on the upper surface, and densely matted with fine hairs underneath. It seemed so big, though I now reflect it was probably rather small. I would haul myself up and over the lowest branch, making whatever use of the twists and folds of the trunk as provided purchase to my small feet.
It is curious that, although the modern theory of evolution has its source in Charles Darwin’s great book On the Origin of Species (1859), the word evolution does not appear in the original text at all. In fact, Darwin seems deliberately to have avoided using the word evolution, preferring to refer to the process of biological change as ‘transmutation’. Some of the reasons for this, and for continuing confusion about the word evolution in the succeeding century and a half, can be unpacked from the word’s entry in the Oxford English Dictionary (OED).
DNA is the foundation of life. It codes the instructions for the creation of all life on Earth. Scientists are now reading the autobiographies of organisms across the Tree of Life and writing new words, paragraphs, chapters, and even books as synthetic genomics gains steam. Quite astonishingly, the beautiful design and special properties of DNA makes it capable of many other amazing feats. Here are five man-made functions of DNA, all of which are contributing to the growing “industrial-DNA” phenomenon.
Since evolution became the primary framework for biological thought, we have been fascinated—sometimes obsessed—with the origins of things. Darwin himself was puzzled by the seemingly sudden appearance of angiosperms (flowering plants) in the fossil record. In that mid-Cretaceous debut, they seemed to be diversified into modern families already, with no evidence of what came before them. This was Darwin’s famous “abominable mystery.”
Most scientific inquires, referring to animals en masse, neglect the idea of individuality among animals. However, disregarding this academic approach, many people view their animal companions as family members. Dogs, often called ‘man’s best friend,’ are no exception. Despite this old saying, science had generally neglected research on dogs until the end of the 19th century.
Analyses of Neanderthal genomes indicate that when anatomically modern humans ventured out of Africa around 50,000 years ago, they met and mated with Neanderthals, probably in regions of the Eastern Mediterranean.
Lincoln was not the first president of the United States to be photographed, but he was the first to be photographed many times, and not only in the portrait studio. His photo archive makes him a modern figure, a celebrity. His short presidency happened just at the time when photography first became straightforward and reliable. Many of the Lincoln photographs were taken by Scottish-born Alexander Gardner.