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A medieval idea of a chimera

The Microchimera Mixture

... which the immune system appears to turn upon the bodies' own tissues. Usually one particular organ or tissue is ... is programmed to live peacefully with cells from its own body and to destroy only foreign invaders such as germs ... understand, occasionally the immune system mistakes our own healthy tissue for that of an invader and unleashes the ...

meerkats - a cooperative society

Co-op parents: meerkats and mongooses

... evolved and is shedding light on the roots of our own species’ collaborative abilities. Living in the flat, ... the selfish drive for survival and to pass on their own genes means few will help to raise the offspring of ... infanticide. We think none of the females know who their own pups are so they care for all of them just in case they ...

Multiple clocks

Tick Tock: Circadian Clock

... in almost every cell in the body. So each organ has its own clock, which sets the timing of the physiological rhythms ... the body's clocks, in all of the other tissues, set their own watches by. So what sets the master clock? This is ... other cell sees these signals and uses them to keep its own clock in check. This is great for keeping the body ...

Could DNA be the information storage solution we desperately need?

... involve using this already-proven method for our own digital storage needs.  So how can this ancient molecule ... already present 100 trillion times over within our own bodies, as well as the proteins required to synthesise ... to stop us adapting and using this technology for our own purposes?   In the last 25 years, man-made technologies ...

A superb fairy wren

How to avoid serious egg fraud

... - is a key feature of animal societies as well as our own. Far from being restricted to large-brained primates like ... of unsuspecting hosts, who then raise the chick as their own, the most well known example being the cuckoo [2]. If ... The risk of not detecting an extra egg, or expelling your own egg by mistake, is high. For species regularly targeted ...

Why do birds flock and fish shoal?

... pigeon's ear. So how do they perceive anything but their own flapping, for example an approaching hawk? What is the ... may also help an individual animal to handle its own ISOL, increasing the perception of crucial signals such ... problems. Birds going into glide flight will reduce their own noise for a while; a group of water fowls that splash ...

Bands of DNA

DNA sequencing in the palm of your hand

... has been improved tremendously over the course of your own lifetime. I wouldn’t be surprised if computers came to ... complete human genome, the three billion bases of our own genetic code, were read. This mammoth project required 13 ... to monitor the Zika epidemic in Brazil. The kids had their own ideas: “I would go to the jungle because there’s ...

Don't Worry, be Happy!

... of Independence While happiness itself is sought for its own sake, every other goal -- health, beauty, money, or power ... There are plenty of miserable millionaires. In my own case I have often found an inverse correlation between my ... that are truly enjoyable are those that we do for their own sake; because they are intrinsically, not extrinsically, ...

Chicken

Infection-fighting Eggs

... protect their offspring by siphoning off some of their own antibodies and adding of them to the foetal circulation ... recognises the horse proteins as foreign and mounts its own, occasionally overzealous response. Human antibodies bind ... immune system takes at least five days to produce its own antibodies. For some infections this is too long. Certain ...

In a beehive, it is thought that a mixture of inquisive and cautious personalities allow for a better division of roles, meaning the whole hive can prosper.

Even insects have distinct personalities

... pet owner knows that their dog, cat or guinea pig has its own individual and distinct personality and now research has ... that form distinct personalities. 'Each individual has its own unique way of solving problems that's consistent over ... It's not just your pet cats and dogs that have their own personalities... Even insects have distinct personalities ...

Figure 2 - Hypothesized reconstruction of the Trichomonas-like infection of a Tyrannosaurus rex. Parasites have plagued vertebrates for a very, very long time. They have co-evolved with us and our evolutionary ancestors over many millions of years.

The Hygiene Hypothesis, Part 3. Are Parasitic Worms Friend or Foe?

... aggressive or inappropriate responses and damages our own tissues in the process. We also learned how helminths ... getting out of hand and causing excessive damage to our own tissues. Mechanisms for this 'immune regulation' include ... that actively attempt to suppress it, purely to aid their own survival. Now, what happens when many of these infectious ...

On the Importance of Expeditions to Science

... becoming a skilled field biologist is dependent on your own initiative. If your dream is to do meaningful research in ... planet, then pack the toilet paper yourself, and plan your own expedition. Tucan in the Peruvian Amazon Cycling across ... unresearched wild population is not just a tragedy in its own right, but reduces our ability to learn more about the ...

Trout are vulnerable to eye fluke parasites, which cause catarracts. Blinded, the fish cannot hide from predating birds and also alter their skin pigmentation to become much more silver, making them easier to catch.

The Science of Parasites

... cuckoo for example, which, seemingly too lazy to rear its own young, lays its egg in another bird's nest. When you look ... ploys, they evolve to develop strategies of their own to avoid being made a fool of in future. From generation ... adept at spotting intruders' eggs amongst their own precious offspring. In response the cuckoo has evolved ...

The Nezara viridula stink bug is one pest that is highly resistant to pesticides. Image credit: ‘Pentatomidae - Nezara viridula f. torquata’ by Hectonichus is licensed under CC SA-3.0

Could we farm out pest control to insects?

... the husbandry skills of Ambrosia beetles, which grow their own food source - fungus - and are the only farming insects ... Biedermann. 'But Ambrosia beetles have been growing their own food for over 30 million years. Whatever tricks they once ...

Hearts

What is the purpose of sexual reproduction ?

... No mess, no fuss, just pure transmission of your own genetic material! Many primitive animals do it every day. ... in the gene pool allowing the transmission of 50% your own and 50% your partner's genes to your young. The point of ... of young we increase the chances of propagating our own genes successfully. What's Love got to do with it? OK. ...

‘Ecological intensification’ swaps pesticides for biodiversity

... something new on the menu that could employ nature's own resources instead. Intensive agriculture aims to achieve ... not so easy and it takes time.' Could we use nature’s own resources instead of pesticides to increase yields? ...

A school of bicolour anthias fish on a coral reef in Fiji

Fish schools: Not all seats in the class are equal

... new friends, yet sitting too close to the back has its own perils, as your teacher may assume you are a troublemaker ... groups." Like our classrooms, fish tend to have their own place in the school, but what factors decide which fish ...

Finding a Genetic Diagnosis

... energy that cells need to function. They also carry their own DNA sequences that code for key components that keep the ... rainy day in Ely, Claire and I meet to talk about our own very different experiences of genetic disease (some of ... I was told not to worry, that he’d get there in his own time and I was a first time mum and bound to worry. But ...

Siblings by the sea

Why Blood is Thicker than Water

... organisms. But Jordan was no such organism; he risked his own life to save someone else, and died in the process. And ... traditions such as parents caring exclusively for their own biological children. To that end, kibbutz children were ... kin altruism tells us something about the origins of our own nepotistic inclinations. No one would dream of explaining ...

Canada goose, Branta canadensis

Reconsidering Non-Native Species

... are truly ideal, the results can even transgress our own categories, enabling a goose to start acting like an invader even within its own native range. Redefining categories, changing conditions One part of the solution is to challenge our own categorical condemnation of non-natives, as Davis and his ...

The Red Queen's race

Evolution Through the Looking Glass

... around it with animals and plants each having their own evolutionary niche. However, this view presents a bit of ... as they are known to kill offspring that aren't their own. So from a theoretical perspective, reproduction without ...

How much of you is actually human?

Your personal microbial aura

... They found that each of the eight occupants emitted their own unique concentration of airborne particles. Microbial ... time that individuals occupying a space can emit their own distinct personal microbial cloud" It is becoming ... unique, it is plausible that we would each have our own personalized microbial 'fingerprint'. As well as unique ...

The caterpillar of the moth Hemeroplanes triptolemus has evolved an amazing snake disguise

Trick or treat!

... mimic others; the natural world has imposters of its very own. In the animal kingdom creatures mimic patterns or ... at nature's spooky animal imitators which play their very own version of trick-or-treat. Trick or treat! ...

This image shows a 0.1 x 0.03 inch (2.5 x 0.8 mm) small Drosophila melanogaster fly.

Forgetful Flies - A tale of two halves (of the brain)

... yet they have brains which are asymmetric like our own. Pascual and his team discovered a small lump inside the ... step will be to look at more a complex brain, such as our own, to see if there is a similar link. Brain imaging ...

Computer generated image of Red blood cells travelling in a blood vessel

CRISPR and sickle cell disease

... The process involves taking stem cells from a patient’s own body, treating the faulty genes with CRISPR-Cas9, and ... long-term success. However, using CRISPR on a patient’s own stem cells means it avoids running into problems with ...