I find humanism to be the most rational and positive philosophy for life. And it's not a new thing at all - the history of humanist thought is deep and inspiring.Collection: Positive
Just as your own existence is unlikely and far from inevitable, the evolution of modern humans as a species depended on a whole string of chance events - some happening in the environments our ancestors inhabited, and some inside their own bodies, including random mutations in their DNA.Collection: Chance
The science of being healthy is well-known. It is not esoteric. There are no magic bullets. If you want to live a long life, we've known the answers for more than a hundred years. It's a wide-ranging diet with as much fruit and veg as you can stuff into yourself, and plenty of exercise. It doesn't even matter what kind of exercise.Collection: Science
If we don't concentrate on resurrecting science, we're not going to be able to compete in a global economy.Collection: Science
Easter is an ancient festival of rebirth, but it's also an excellent excuse for eating eggs. I really like eggs, of both the chocolate and chicken variety. But the chocolate ones, you must admit, can sustain only a fleeting interest. A sweet, sugary hit - and then it's gone.Collection: Easter
When I started doing television, I was very aware my clothes would be obvious and it was a great opportunity to promote brands which are made with respect to people and the environment.Collection: Respect
The paleo diet is utter nonsense - it is such pseudoscience.Collection: Diet
You don't need to go to Rome, Prague or Vienna to find wonderful architecture, amazing stories and suprising, hidden gems.Collection: Amazing
I was a goth in my student days. I dyed my hair black, but it came out grey, with a blue scalp. Then I dyed it red and it came out fuschia pink.
Chance is hugely significant in biology. In fact, the presence of apparent randomness in so many aspects of biology - from mutations in DNA to the chance involved in that one sperm reaching that one egg that became you - suggests that randomness is useful, even necessary, in very many cases.
One of the big factors in me going to an independent school was the bullying at junior school. But it wasn't an easy choice for my parents. And now, I do have issues with independent schools.
I'm slightly obsessed with Moomins. They were my specialist subject on BBC's 'Celebrity Mastermind' a few years ago!
We need to stop being so profligate with fossil fuels, to rein back climate change and protect biodiversity. We need to work together, globally, and I'm optimistic that we will.
Looking in detail at human anatomy, I'm always left with two practically irreconcilable thoughts: our bodies are wonderful, intricate masterpieces; and then - they are cobbled-together, rag-bag, sometimes clunking machines.
Educated guesswork' is what science is. You form hypotheses, test them against the evidence, and if they fit the evidence, you can assume you've got close to the truth.
The scientific method is about trying to remove our own bias and subjectivity, and be as objective as possible. But then you can put it back into context and you're allowed to be emotional and human about the way you engage with it.
So I think as a biologist I would like us to focus on this planet and finding solutions to sustaining humanity, to improving people's lives globally, but doing our absolute utmost to preserve as much biodiversity as we can, knowing that we have already been responsible for the loss of thousands of species.
Embryology reveals surprising similarities between early embryos of seemingly quite different animals. And it also shows that some structures that may look very different later on have fundamental similarities in the way they form.
I have family connections with Salisbury through my godmother. Her sister lived there, so I have very fond memories of visiting the city as a child.
As an anthropologist, I believe strongly in our common humanity. We can rise above the tribal divisions that have caused so much anguish and real damage in the past.
But I think you can strip the emotion and the subjectivity away while you focus on doing the science - and that's really important.
You're not tapping into the widest possible pool of talent if you're shutting some people out of particular careers.
We have plenty of young women coming into biology and medicine, but we don't have enough coming into physics and engineering. It's a really weird thing because, of course, all these subjects are completely neutral.
I've wanted to write a book on embryology, that extraordinary journey where you start off as a single cell and end up with a human body, for a general audience for years.
Did people's attitudes towards me change after I appeared on TV? Yeah, definitely. During my career I've had some flak - particularly doing television.
At Bristol I found it quite difficult to continue trying to balance three things - teaching, research and public engagement, for which television was obviously the most prominent part.
I was effectively unemployed after my son was born. I resigned from Bristol because I wasn't happy with the way my career was going then discovered I was pregnant when I was out of a job, but I was freelancing.
We have been talking about public engagement for a decade. For me it is about recognising that the mission of science has to be embedded within our culture - the direction in which science is going has to be determined by all of us, and so we need a dialogue with the public.
We need to get across the excitement and creativity of science. That it isn't just a list of facts that have already been discovered - but a process, a creative project, that you are generating ideas, testing them and looking for evidence.
It is so stimulating for young children to hear someone who does science talking about it. It can be so exciting and inspiring. It is easy to get younger school children enthused about science.
I grew up in the Seventies; my dad is an aeronautical engineer and my mum was an English and arts teacher and for a while my family had to exist on one salary.
I was keen to earn my own money from an early age. I had a job as a paper girl in my local village when I was about 11 - and when I was a bit older, around 15, I was a waitress.
I was extremely lucky as I was in one of the last generations of British students who went to university and had my fees paid, and I had a grant as well. I also earned money from my waitressing and designing and selling my own range of dinosaur cards.
Choosing my career was always based on job satisfaction rather than financial security. I wanted to get a job in science; I enjoyed being a surgeon and I now enjoy being an academic and having a media career.
In fact, humans have less variation genetically than chimpanzees.
I suppose the thing I'm quite pleased about is that I am, I would hope, a role model for girls and younger women who are thinking about doing science.
More useful than beautiful perhaps, my favourite regular programme is 'Question Time'. And Charlie Brooker is just hilarious.
I love Roger Deakin's writing, and enjoyed making a programme about wild swimming for BBC4, inspired by his book about his own aquatic adventures, 'Waterlog'.
I usually turn over when ads appear on television. But - very rarely - I am gripped by a particularly beautiful one, and wonder if art historians of the future will point to these televisual delights as our best art.
The access to information the web provides is both daunting and exciting. Information that was once secreted away in library stacks is now so much more easily available.
Archaeology can be overlooked as a discipline, I think, but it's incredibly important to have this other way of approaching the past - not just through historical documents, but through actual physical remains - objects, buildings and the layout of our towns.
It's incredible that the layout of the centre of Chester, for instance, is still essentially that of the original Roman fort.
I love prehistory - particularly the Neolithic and the Bronze Age. These were times when our ancestors made a revolutionary change from being hunter-gatherers to being farmers, and when great migrations of people spread languages - and genes - across Europe.
So I had this fascination with old bones and being able to diagnose disease in old bones. And I was doing that, and started to do bone reports for the Channel 4 series 'Time Team'.
Then the BBC approached me in 2005 and asked me to be one of the presenters of the series 'Coast', which turned into a very long-running series.
Biological anthropology tends to focus on skeletons because that's what is often left behind in the ground, but I am a whole-body anatomist, I'm a clinical anatomist and that's what I teach, I teach it all, not just the skeleton, the muscles and nerves, blood vessels.
The environment would be better off and everyone would be healthier if we stopped eating meat.
It's tempting to look back into history with rose-tinted glasses. Most people in the Stone Age didn't live anywhere near as long as we're living now. Today we can enjoy a more wide-ranging diet and we have fruit and vegetables available all year round.
You can somehow get access to what is perceived to be a better school by either being religious or appearing to be religious. That is unfair.
My childhood hero was David Attenborough. He opened my eyes to the wonder of the natural world. In fact, he's still my hero. I interviewed him at the Science Museum in 2015, and he is such a thoughtful, humble and inspiring person.